Practical guidelines infection_control

World Health Organization
Regional Office for Western Pacific, Manila
Regional Office for South-East Asia, New Delhi
Practical Guidelines for
Infection Control in
Health Care Facilities

SEARO Regional Publication No. 41
WPRO Regional Publication
Practical Guidelines
for Infection Control in
Health Care Facilities

WHO Library Cataloguing in Publication Data
World Health Organization, Regional Office for South-East Asia and Regional
Office for Western Pacific
Practical guidelines for infection control in health care facilities.
1. Infection control. 2. Health facilities - standards. 3. Severe acute respiratory
syndrome - prevention and control. 4. Communicable disease control - methods.
5. Practice Guidelines. I. Title. II. SEARO Regional Publication No. 41. III.
WPRO Regional Publication.
(NLM classification: WX 167)
ISBN 92 9022 238 7
©World Health Organization 2004
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to the Regional Office for South-East Asia, World Health House, Indraprastha
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Organization; however, they focus on issues that have been recognized by the
Organization and Member States as being of high priority.
Printed in India

Contents
Foreword...............................................................vii
1. Introduction....................................................... 1
Background .............................................................................. 1
Infection control precautions .............................................................. 1
Purpose .............................................................................................. 2
Objectives ........................................................................................... 2
Use of the guidelines ........................................................................... 3
2. Infection Control Programme............................. 4
Need for an infection control programme ................................. 4
What is an infection control programme? ................................. 5
Organization of an infection control programme ...................... 6
Infection control committee ................................................................ 6
Infection control team ........................................................................ 7
Infection control manual .......................................................... 8
Education and training of health care staff................................ 9
3. Infection Control Practices................................ 10
Standard precautions .............................................................. 10
Hand washing and Antisepsis (hand hygiene) ................................... 11
Use of personal protective equipment ............................................... 11
Management of health-care waste .................................................... 15
Additional (transmission-based) precautions ........................... 15
Airborne precautions ........................................................................ 15
Droplet precautions .......................................................................... 16
Contact precautions .......................................................................... 17

Infection Control in Health Care Facilities
iv
Patient placement and transportation of patients .................... 17
Patient placement.............................................................................. 17
Spacing between beds ....................................................................... 17
Single rooms..................................................................................... 18
Anterooms........................................................................................ 18
Cohorting ......................................................................................... 18
Transportation of patients ................................................................ 18
4. Environmental Management Practices.............. 19
Premises/buildings ................................................................. 19
Air ......................................................................................... 20
Ventilation ........................................................................................ 20
Special air handling for airborne precautions .................................... 20
Protective environment ..................................................................... 21
Water ..................................................................................... 21
Safe drinking water .......................................................................... 21
Cleaning of the hospital environment ..................................... 22
Waste management ................................................................ 22
Principles of waste management ....................................................... 23
Treatment of hazardous and
clinical/infectious waste ................................................................... 23
Methods of disposal .......................................................................... 24
Laundry ................................................................................. 26
General instructions ......................................................................... 26
Reprocessing of instruments and equipment ........................... 27
Reprocessing Principles...................................................................... 27
Cleaning, disinfection and sterilization .................................... 30
Cleaning ........................................................................................... 30
Selection of disinfectant .................................................................... 33
Sterilization ...................................................................................... 34
Special consideration – Creutzfeldt-Jacob disease .............................. 37

Contents
v
5. Care of Health Care Workers ............................ 46
Exposure to human immunodeficiency virus (HIV) ................ 46
Exposure to hepatitis B virus .................................................. 47
Exposure to hepatitis C virus .................................................. 47
Sharp injuries ......................................................................... 48
Tuberculosis ........................................................................... 48
Meningococcal meningitis ...................................................... 48
SARS ...................................................................................... 48
Other infections; varicella, influenza,
pertussis, diphtheria, rabies .................................................... 49
6. Infection Control Precautions
for Selected Situations ...................................... 50
Severe acute respiratory syndrome (SARS) .............................. 50
Causative agent ................................................................................ 50
Susceptibility .................................................................................... 51
Clinical picture in SARS patients ....................................................... 51
Clinical case definition of SARS ......................................................... 52
Laboratory case definition of SARS ................................................... 52
Infection control precautions for SARS .............................................. 53
Transportation of patients with SARS ............................................... 54
Personal protective equipment used for SARS .................................... 54
Waste disposal .................................................................................. 55
Specimen collection and transportation............................................. 56
Hospital screening, admission procedures and triage ......................... 56
Care of SARS patients in isolation ..................................................... 56
Discharging the patient..................................................................... 59
Care of the deceased .......................................................................... 60
Post-mortem .................................................................................... 60
Infections with multidrug resistant organisms ....................... 62
Appropriate antimicrobial use........................................................... 62
Antimicrobial use committee ............................................................ 63

vi
Control of endemic antibiotic resistance ............................................ 63
Methicillin-resistant Staphylococcus aureus (MRSA)......................... 63
Vancomycin-resistant enterococcus (VRE) ........................................ 64
Multidrug-resistant tuberculosis (MDR-TB) ...................................... 65
Infections with viral haemorrhagic fevers ............................... 67
Mode of transmission ....................................................................... 67
Infection control precautions ............................................................ 67
References............................................................. 69
Further Reading.................................................... 71
Glossary............................................................... 72
Acronyms ............................................................ 75
Annexes
1. Hand Washing.................................................................... 76
2. Personal Protective Equipment ............................................ 81
3. Infection Control: A Quick Reference Guide for SARS........... 93
4. Suggested Checklist for SARS Trolley/Table ......................... 95
5. Isolation room.................................................................... 96
6. Infection Control Advice to Contacts
of Suspect or Probable SARS cases ....................................... 97
Acknowledgements ............................................ 102

Foreword
vii
The World Health Organization has recognized severe acute respiratory syndrome
(SARS) as the first serious and readily transmissible disease to emerge in the 21st
century. Despite rapid progress towards understanding the disease and the mode
of transmission of the SARS virus, many gaps need to be filled. During the SARS
outbreak, it was apparent that the virus easily spread through close hospital
contact with infected persons. In fact, in all severely affected countries, health
care facilities became the focal points for the spread of the disease.
In the absence of any effective treatment and vaccine, health authorities resorted
to basic public health measures. Rapid case detection, immediate isolation, contact
tracing and good infection precautions were instituted to prevent further infection.
However, as SARS spread, it became obvious that many countries lacked the
necessary infrastructure, facilities, equipment and trained personnel to provide
appropriate infection control measures. Health care facilities, in both developed
and developing countries, were far from being prepared to deal with the situation.
In this context, it is essential that all countries strengthen their surveillance and
response systems as well as their infection control capacities.
These guidelines, jointly prepared by the WHO Regional Offices for South-
East Asia and the Western Pacific, should help countries to strengthen their
infection control practices in health care facilities. This would help to prevent
further spread of infection and to deal effectively with new infectious diseases
like SARS as well as other hospital-associated infections. The guidelines address
all aspects of an infection control programme with special attention being paid
to SARS. Since information on SARS is still evolving, these guidelines will be
updated as more specific information becomes available.
WHO is deeply committed to helping Member States adapt these guidelines
for use within their own health systems. Their application, we are confident,
will contribute substantially to strengthening infection control practices and
preventing hospital-associated infections. We firmly believe that our joint efforts
will make all the difference to the health of our people.
Samlee Plianbangchang, M.D., Dr.P.H. Shigeru Omi, M.D., Ph.D.
Regional Director Regional Director
South-East Asia Region Western Pacific Region
Foreword

Introduction
1
Background
The emergence of life-threatening infections such as severe acute respiratory
syndrome (SARS) and re-emerging infectious diseases like plague and
tuberculosis have highlighted the need for efficient infection control
programmes in all health care settings and capacity building for health care
workers so they can implement them. An infection control programme puts
together various practices which, when used appropriately, restrict the spread
of infection.
A breach in infection control practices facilitates transmission of infection
from patients to health care workers, other patients and attendants. It is
therefore important for all health care workers, patients, their family
members, friends and close contacts to adhere to the infection control
guidelines strictly. It is also imperative for health care administrators to
ensure implementation of the infection control programme in health care
facilities.
Infection control precautions
“Standard precautions” require that health care workers assume that the
blood and body substances of all patients are potential sources of infection,
regardless of the diagnosis, or presumed infectious status. Additional
precautions are needed for diseases transmitted by air, droplets and contact.
These are termed “additional (transmission-based) precautions”.1
The terms “standard precautions” and “additional (transmission-based)
precautions” have replaced previous terms such as universal blood and body
fluid precautions, universal precautions and barrier nursing. While particular
1Introduction

2
care needs to be taken in the management of patients/clients known to have
active infections it must be remembered that infection will not always be
detected and complete safety can lie only in following the appropriate level
of precautions.
Purpose
The South-East Asia and Western Pacific Regional Offices of the World Health
Organization (WHO) have jointly developed these guidelines to provide
comprehensive information to health care workers in the prevention and
control of transmissible infections. These are built on current infection control
guidelines, which have recently been developed by WHO.2
They place special
emphasis on standard and additional (transmission-based) precautions.
The guidelines have been prepared specifically to assist infection control
practitioners in the integrated management of hospital-associated infections
prevention and control (for both curative and preventive activities such as
good environmental practices like proper administration of health care wastes,
water quality control, etc.) and to ensure that health care administrators
understand the significance of infection control programmes.
Objectives
The general objective of these guidelines is to provide administrators and
health care workers with the tools to enable them to implement the infection
control programme effectively in order to protect themselves and others
from the transmission of infections.
The specific objectives of these guidelines are to provide directions and
information in relation to:
• Facilities, equipment, and procedures necessary to implement standard
and additional (transmission-based) precautions for control of
infections
• Cleaning, disinfecting and reprocessing of reusable equipment
• Waste management
• Protection of health care workers from transmissible infections
• Infection control practices in special situations

Introduction
3
Use of the guidelines
The guidelines are generic in nature and can be used in any health care
facility. Countries need to adapt them to suit their needs, context and
resources. Health care providers from Member Sates should periodically refer
to WHO websites for up-to-date information on infectious diseases and their
control.
WHO Headquarters: http://www.who.int
South-East Asia Regional Office: http://www.whosea.org
Western Pacific Regional Office: http://wpro.who.int

4
Need for an infection control programme
The responsible health authority should develop a national (or regional)
programme to support hospitals in reducing the risk of health-care-associated
or nosocomial infections. More information on infection control programmes
can be found in the document “Prevention of hospital-acquired infections”
at:
http://www.who.int/emc
Such a programme must:
• set relevant national objectives consistent with other national health
care objectives;
• develop and continually update guidelines for recommended health
care surveillance, prevention, and practice;
• develop a national system to monitor selected infections and assess
the effectiveness of interventions;
• harmonize initial and continuing training programmes for health care
professionals;
• facilitate access to materials and products essential for hygiene and
safety; and
• encourage health care establishments to monitor health-care associated
(nosocomial) infections and to provide feedback to the professionals
concerned.
The national or regional health authority should designate an agency to
oversee the programme (a ministerial department, institution or other body),
2Infection Control Programme

Infection Control Programme
5
and plan national activities with the help of a national expert committee.
This committee would:
• review risks associated with new technologies, and monitor the risk
of acquiring an infection from new devices and products, before their
approval for use;
• review and provide input into investigation of outbreaks and epidemics;
• communicate and cooperate with other committees of the health care
facility with common interests such as pharmacy and therapeutics or
antimicrobial use committee, biosafety or health and safety committees,
waste management committee and blood transfusion committee.
Each health care facility needs to:
• develop an infection control programme to ensure the well being of
both patients and staff;
• develop annual work plan to assess and promote good health care,
appropriate isolation; sterilization; and other practices, staff training,
and epidemiological surveillance;
• provide sufficient resources to support the infection control programme.
Risk prevention for patients and staff is a concern of everyone in the
facility, and must be supported by the senior administration.
What is an infection control programme?
The important components of the infection control programme are:
• basic measures for infection control, i.e. standard and additional
precautions;
• education and training of health care workers;
• protection of health care workers, e.g. immunization;
• identification of hazards and minimizing risks;
• routine practices essential to infection control such as aseptic techniques,
use of single use devices, reprocessing of instruments and equipment,
antibiotic usage, management of blood/body fluid exposure, handling
and use of blood and blood products, sound management of medical
waste;

6
• effective work practices and procedures, such as environmental
management practices including management of hospital/clinical
waste, support services (e.g., food, linen), use of therapeutic devices;
• surveillance;
• incident monitoring;
• outbreak investigation;
• infection control in specific situations; and
• research.
In addition to implementing basic measures for infection control, health
care facilities should prioritize their infection control needs and design their
programmes accordingly.
Organization of an infection control
programme
As with all other functions of a health care facility, the ultimate responsibility
for prevention and control of infection rests with the health administrator.
The hospital administrator/head of hospital should:
• Establish an infection control committee which will in turn appoint
an infection control team; and
• provide adequate resources for effective functioning of the infection
control programme.
Infection control committee
An infection control committee provides a forum for multidisciplinary input
and cooperation, and information sharing. This committee should include
wide representation from relevant departments: e.g. management, physicians,
other health care workers, clinical microbiology, pharmacy, sterilizing service,
maintenance, housekeeping and training services. The committee must have
a reporting relationship directly to either administration or the medical staff
to promote programme visibility and effectiveness.
In an emergency (such as an outbreak), this committee must be able to
meet promptly. It has the following tasks:

7
• To review and approve a yearly programme of activity for surveillance
and prevention;
• to review epidemiological surveillance data and identify areas for
intervention;
• to assess and promote improved practice at all levels of the health
facility;
• to ensure appropriate staff training in infection control and safety
management, provision of safety materials such as personal protective
equipment and products; and
• training of health workers.
The infection control programme will be effective so long as it is
comprehensive and includes surveillance and prevention activities, as well
as staff training. There must also be effective support at national and regional
levels.
The infection control committee is responsible for the development of
policies for the prevention and control of infection and to oversee the
implementation of the infection control programme. It should:
• be composed of representatives of various units within the hospital
that have roles to play (medical, nursing, engineering, house keeping,
administrative, pharmacy, sterilizing service and microbiology
departments);
• elect one member of the committee as the chairperson (who should
have direct access to the head of the hospital administration);
• appoint an infection control practitioner (health care worker trained
in the principles and practices of infection control, e.g. a physician,
microbiologist or registered nurse) as secretary.
• meet regularly (ideally monthly but not less than three times a year).
• develop its own infection control manual/s; and
• monitor and evaluate the performance of the infection control
programme.
Infection control team
The infection control team is responsible for the day-to-day activities of the
infection control programme. Health care establishments must have access

8
to specialists in infection control, epidemiology, and infectious disease,
including physicians and infection control practitioners.
In some countries, these professionals are specialized teams working for
a hospital or a group of health care establishments; they may be
administratively part of another unit (e.g. a microbiology laboratory, medical
or nursing administration, public health services). The optimal structure
will vary with the type, needs, and resources of the facility.
The reporting structure must, however, ensure the infection control team
has appropriate authority to manage an effective infection control
programme. In large facilities, this will usually mean a direct reporting
relationship with senior administration. The infection control team or
individual is responsible for the day-to-day functions of infection control,
as well as preparing the yearly work plan for review by the infection control
committee and administration.
These teams or individuals have a scientific and technical support role,
e.g. surveillance and research, developing and assessing policies and practical
supervision, evaluation of material and products, the overseeing of
sterilization and disinfection, ensuring the sound management of medical
waste and the implementation of training programmes. They should also
support and participate in research and assessment programmes at the
national and international levels.
The infection control team should:
• Consist of at least an infection control practitioner who should be
trained for the purpose;
• carry out the surveillance programme;
• develop and disseminate infection control policies;
• monitor and manage critical incidents;
• coordinate and conduct training activities.
Infection control manual
A hospital-associated infection prevention manual containing instructions
and practices for patient care is an important tool. The manual should be
developed and updated by the infection control team and reviewed and
approved by the committee. It must be made readily available for health
care workers, and updated in a timely fashion.

9
Education and training of health care staff
Health administrators should be oriented towards the importance of the
infection control programme.
Health care workers should be equipped with requisite knowledge, skills
and attitudes for good infection control practices.
The infection control team should:
• Assess training needs of the staff and provide required training through
awareness programmes, in-service education and on-the-job training;
• organize regular training programmes for the staff for essential
infection control practices that are appropriate to their job description;
• provide periodic re-training or orientation of staff; and review the
impact of training.

10
Infection control practices can be grouped in two categories
(1)standard precautions;
(2)additional (transmission-based) precautions.
Transmission of infections in health care facilities can be prevented and
controlled through the application of basic infection control precautions which
can be grouped into standard precautions, which must be applied to all
patients at all times, regardless of diagnosis or infectious status, and additional
(transmission-based) precautions which are specific to modes of transmission
(airborne, droplet and contact).1,2,3,4,5
Standard precautions
Treating all patients in the health care facility with the same basic level of
“standard” precautions involves work practices that are essential to provide
a high level of protection to patients, health care workers and visitors.
These include the following:
• hand washing and antisepsis (hand hygiene);
• use of personal protective equipment when handling blood, body
substances, excretions and secretions;
• appropriate handling of patient care equipment and soiled linen;
• prevention of needlestick/sharp injuries;
• environmental cleaning and spills-management; and
• appropriate handling of waste.
3Infection Control Practices

Infection Control Practices
11
Hand washing and Antisepsis (hand hygiene)
Appropriate hand hygiene can minimize micro-organisms acquired on the
hands during daily duties and when there is contact with blood, body fluids,
secretions, excretions and known and unknown contaminated equipment
or surfaces (for further details see Annex 1).
Wash or decontaminate hands:
• after handling any blood, body fluids, secretions, excretions and
contaminated items;
• between contact with different patients;
• between tasks and procedures on the same patient to prevent cross-
contamination between different body sites;
• immediately after removing gloves; and
• using a plain soap, antimicrobial agent, such as an alcoholic hand-
rub or waterless antiseptic agent.
The hospital setting is a good setting for communication about personal
hygiene, such as informing visitors and the general public about hygiene
rules such as washing hands.
Use of personal protective equipment
Using personal protective equipment provides a physical barrier between
micro-organisms and the wearer. It offers protection by helping to prevent
micro-organisms from:
• contaminating hands, eyes, clothing, hair and shoes;
• being transmitted to other patients and staff (for further information
about personal protective equipment see Annex 2).
Personal protective equipment includes:
• gloves;
• protective eye wear (goggles);
• mask;
• apron;
• gown;
• boots/shoe covers; and
• cap/hair cover.

12
Personal protective equipment should be used by:
• Health care workers who provide direct care to patients and who work
in situations where they may have contact with blood, body fluids,
excretions or secretions;
• support staff including medical aides, cleaners, and laundry staff in
situations where they may have contact with blood, body fluids,
secretions and excretions;
• laboratory staff, who handle patient specimens; and
• family members who provide care to patients and are in a situation
where they may have contact with blood, body fluids, secretions and
excretions.
Principles for use of personal protective equipment
Personal protective equipment reduces but does not completely eliminate the
risk of acquiring an infection. It is important that it is used effectively,
correctly, and at all times where contact with blood and body fluids of patients
may occur. Continuous availability of personal protective equipment and
adequate training for its proper use are essential. Staff must also be aware
that use of personal protective equipment does not replace the need to follow
basic infection control measures such as hand hygiene.
The following principles guide the use of personal protective equipment:
• Personal protective equipment should be chosen according to the risk
of exposure. The health care worker should assess whether they are
at risk of exposure to blood, body fluids, excretions or secretions and
choose their items of personal protective equipment according to this
risk.
• Avoid any contact between contaminated (used) personal protective
equipment and surfaces, clothing or people outside the patient care
area.
Examples of personal protective equipment

13
• Discard the used personal protective equipment in appropriate disposal
bags, and dispose of as per the policy of the hospital.
• Do not share personal protective equipment.
• Change personal protective equipment completely and thoroughly
wash hands each time you leave a patient to attend to another patient
or another duty.
Gloves
Wear gloves (clean, non-sterile) when
touching blood, body fluids, secretions,
excretions or mucous membranes.
Change gloves between contacts with
different patients.
Change gloves between tasks/
procedures on the same patient to
prevent cross-contamination between
different body sites.
Remove gloves immediately after use and before attending to another
patient.
Wash hands immediately after removing gloves.
Use a plain soap, antimicrobial agent or waterless antiseptic agent.
Disposable gloves should not be reused but should be disposed of according
to the health care facility protocol.
Masks
Wear a mask to protect mucous membranes of the mouth and nose when
undertaking procedures that are likely to generate splashes of blood, body
fluids, secretions or excretions. (For further information about types of masks
to be used see Annex 2.)
Wear surgical masks rather than cotton material or gauze masks. Surgical
masks have been designed to resist fluids to varying degrees depending on
the design of the material in the mask.
Do not reuse disposable masks. They should be disposed of according to
the health care facility protocol.
It is important to use
personal protective
equipment effectively,
correctly, and at all times
where contact with
patient’s blood, body
fluids, excretions and
secretions may occur.

14
Protective eyewear/goggles/visors/face shield
Wear protective eyewear/goggles/visors/face shields to protect the mucous
membranes of the eyes when conducting procedures that are likely to generate
splashes of blood, body fluids, secretions or excretions. If disposable, discard
appropriately. If they are reusable, decontaminate them according to the
manufacturers’ instructions.
Gowns and plastic aprons
Wear a gown (clean, non-sterile) to protect the skin and prevent soiling of
clothing during procedures that are likely to generate splashes of blood,
body fluids secretions or excretions. Impermeable gowns are preferable.
Remove a soiled or wet gown as soon as possible.
A plastic apron may be worn on top of the gown to protect exposure to
blood, body fluids, secretions and excretions.
Launder gowns and aprons appropriately if they are reusable, according
to the hospital guidelines
Do not reuse disposable gowns and aprons. They should be disposed of
according to the health care facility protocol.
Caps and boots/shoe covers
Wear caps and boots/shoe covers where there is a likelihood the patient’s
blood, body fluids, secretions or excretions may splash, spill or leak onto the
hair or shoes.
Launder caps and shoe covers appropriately if they are reusable, according
to the hospital guidelines.
Do not reuse disposable caps/shoe covers. They should be discarded
according to the health care facility protocol.
Clean and disinfect reusable boots.
Patient care equipment
Handle patient care equipment soiled with blood, body fluids secretions or
excretions with care in order to prevent exposure to skin and mucous
membranes, clothing and the environment.
Ensure all reusable equipment is cleaned and reprocessed appropriately
before being used on another patient.

15
Linen
Handle, transport and process used linen that is soiled with blood, body
fluids, secretions or excretions with care to ensure that there is no leaking of
fluid.
Prevention of needle stick/sharps injuries
Take care to prevent injuries when using needles, scalpels and other sharp
instruments or equipment.
Place used disposable syringes and needles, scalpel blades and other sharp
items in a puncture-resistant container with a lid that closes and is located
close to the area in which the item is used.
Take extra care when cleaning sharp reusable instruments or equipment.
Never recap or bend needles.
Sharps must be appropriately disinfect and/or destroyed as per the national
standards or guidelines.
Management of health-care waste
Uncollected, long stored waste or waste routing within the premises must
be avoided. A sound waste management system needs to be developed and
closely monitored. (For further information see Environmental Management
Practices – Chapter 4.)
Additional (transmission-based)
precautions
Additional (transmission-based) precautions are taken while ensuring
standard precautions are maintained. Additional precautions include:
• Airborne precautions;
• Droplet precautions; and
• Contact precautions.
Airborne precautions
Airborne precautions are designed to reduce the transmission of diseases
spread by the airborne route. Airborne transmission occurs when droplet

16
nuclei (evaporated droplets) <5 micron in size are disseminated in the air.6
These droplet nuclei can remain suspended in the air for some time. Droplet
nuclei are the residuals of droplets and when suspended in the air, dry and
produce particles ranging in size from 1-5 micron. These particles can remain
suspended in the air for long periods of time, especially when bound on dust
particles. Diseases which spread by this mode include open/active pulmonary
tuberculosis (TB), measles, chicken pox, pulmonary plague and haemorrhagic
fever with pneumonia.
The following precautions need to be taken:
• Implement standard precautions.
• Place patient in a single room that has a monitored negative airflow
pressure, and is often referred to as a “negative pressure room” (see
Glossary). The air should be discharged to the outdoors or specially
filtered before it is circulated to other areas of the health care facility.
• Keep doors closed.
• Anyone who enters the room must wear a special, high filtration,
particulate respirator (e.g. N 95) mask.
• Limit the movement and transport of the patient from the room for
essential purposes only. If transport is necessary, minimize dispersal
of droplet nuclei by masking the patient with a surgical mask.
It is important to gain the support of engineering services to ensure that the
negative airflow pressure is maintained.
Droplet precautions
Diseases, which are transmitted by this route, include pneumonias, pertussis,
diphtheria, influenza type B, mumps, and meningitis. Droplet transmission
occurs when there is adequate contact between the mucous membranes of
the nose and mouth or conjunctivae of a susceptible person and large particle
droplets (> 5 microns).7
Droplets are usually generated from the infected
person during coughing, sneezing, talking or when health care workers
undertake procedures such as tracheal suctioning.7
• Place patient in a single room (or in a room with another patient
infected by the same pathogen).

17
• Wear a surgical mask when working within 1-2 meters of the patient.
• Place a surgical mask on the patient if transport is necessary.
• Special air handling and ventilation are not required to prevent droplet
transmission of infection.
Contact precautions
Diseases which are transmitted by this route include colonization or infection
with multiple antibiotic resistant organisms, enteric infections and skin
infections.
• Place patient in a single room (or in a room with another patient
infected by the same pathogen). Consider the epidemiology of the
disease and the patient population when determining patient placement.
• Wear clean, non-sterile gloves when entering the room.
• Wear a clean, non-sterile gown when entering the room if substantial
contact with the patient, environmental surfaces or items in the
patient’s room is anticipated.
• Limit the movement and transport of the patient from the room;
patients should be moved for essential purposes only. If transportation
is required, use precautions to minimize the risk of transmission.
Patient placement and transportation
of patients
Patient placement
Appropriate or selective placement of patients is important in preventing the
transmission of infections in the hospital setting. General principles in relation
to the placement of patients include the following:
Spacing between beds
In open plan wards there should be adequate spacing between each bed to
reduce the risk of cross contamination/infection occurring from direct or
indirect contact or droplet transmission. Optimum spacing between beds is
1-2 meters.

18
Single rooms
Single rooms reduce the risk of transmission of infection from the source
patient to others by reducing direct or indirect contact transmission. Where
possible, single rooms should have the following facilities:
• hand washing facilities;
• toilet and bathroom facilities.
Anterooms
Single rooms used for isolation purposes may include an anteroom to support
the use of personal protective equipment.
Cohorting
For infection control purposes, if single rooms are not available, or if there
is a shortage of single rooms, patients infected or colonized by the same
organism can be cohorted (sharing of room/s).
When cohorting is used during outbreaks these room/s should be in a
well-defined area (a designated room or designated ward), which can be
clearly segregated from other patient care areas in the health care facility
used for non-infected/colonized patients.
Transportation of patients
Limiting the movement and transport of patients from the isolation room/
area for essential purposes only will reduce the opportunities for transmission
of micro-organisms in other areas of the hospital.
If transportation is required, suitable precautions should be taken to reduce
the risk of transmission of micro-organisms to other patients, health care
workers or the hospital environment (surfaces or equipment). For example:
when transporting a patient with pulmonary tuberculosis (open/active)
placing a surgical mask on the patient while in transit is an appropriate
precaution.

Environmental Management Practices
19
A clean environment plays an important role in the prevention of hospital-
associated infections (HAI). Many factors, including the design of patient
care areas, operating rooms, air quality, water supply and the laundry, can
significantly influence the transmission of HAI.
Premises/buildings
Facility design and planning should ensure:
• adequate safe water supply;
• appropriate cleaning practices;
• adequate floor space for beds;
• adequate interbed space;
• adequate handwashing facilities;
• adequate ventilation for isolation rooms and high-risk areas like
operation theatres, transplant units, intensive care areas, etc.
• adequate isolation facilities for airborne, droplet, contact isolation and
protective environment;
• regulation of traffic flow to minimize exposure of high-risk patients
and facilitate patient transport;
• measures to prevent exposure of patients to fungal spores during
renovations;
• precautions to control rodents, pests and other vectors; and
• appropriate waste management facilities and practices.
4Environmental Management
Practices

20
Air
Ventilation
Ventilation systems should be designed and maintained to minimize microbial
contamination. The air conditioning filters should be cleaned periodically
and fans that can spread airborne pathogens should be avoided in high-risk
areas.
High-risk areas such as operating rooms, critical care units and transplant
units require special ventilation systems. Filtration systems (air handling
units) designed to provide clean air should have high efficiency particulate
air (HEPA) filters in high-risk areas. Unidirectional laminar airflow systems
should be available in appropriate areas in the hospital construction. Ultra
clean air is valuable in some types of cardiac surgery/neurosurgery/implant
surgery theatres and transplant units.
For the operating room, the critical parameters for air quality include:
• frequent maintenance/validation of efficacy of filters (in accordance
with manufacturer’s requirements);
• pressure gradient across the filter bed and in the operation theatre;
• air changes per hour (minimum 15 air changes per hour);
• temperature should be maintained between 20°C and 22°C and
humidity between 30% and 60% to inhibit bacterial multiplication;
• general areas should be well ventilated if they are not air-conditioned.
Special air handling for airborne precautions
Negative air pressure vented to the air is recommended for contaminated
areas and is required also for isolation of patients with infections spread by
the airborne route. An air-handling system providing 6-12 air changes per
hour with the air being discharged outside through a filtration mechanism
is recommended. Systems must be checked by engineering services to ensure
they are in fact offering negative pressure rooms.
An air-conditioned single room with an exhaust or a well-ventilated room
are adequate options for health care facilities without “negative pressure”
rooms. (See also “Negative Pressure Room” in the glossary.)
If an air-conditioned single room is not available as in many resource
poor settings, a fan can be placed in the room to direct airflow towards an

21
outside window. The door/s to the aisle or other rooms should be kept closed
at all times.
Protective environment
A protective environment may be required for some neutropenic patients.
Ultra clean unidirectional air may be required in some units such as
haematology or intensive care due to the level of immunosuppression of the
patients. To minimize airborne particles, air must be circulated into the room
with a velocity of at least 0.25m/sec through a high efficiency particulate
air (HEPA) filter. The HEPA filter removes particles to a certain defined size.
If particles 0.3 microns in diameter are removed, the air entering the room
can be classified as being clean and free of bacterial contamination. 2
Other important ways of protecting patients with severely lowered
immune systems include:
• Health care workers and visitors should avoid contact with the patient
if they have any infections (for example, upper respiratory tract
infections or herpes simplex blisters).
• Where appropriate, staff and visitors should wear personal protective
equipment to protect the patient from micro-organisms.
• Do not put flowers or plants in the room.
• Ensure a tidy environment.
• Environmental cleaning should be done twice daily and should consist
of damp dusting only – do not create aerosols.
• Use strict aseptic techniques for all clinical procedures.
Water
The health care facility should provide safe water. If it has water storage
tanks, they should be cleaned regularly and the quality of water should be
sampled periodically to check for bacterial contamination.
Safe drinking water
Where safe water is not available, boil water for 5 minutes to render it safe.
Alternatively, use water purification units.
Store water in a hygienic environment. Do not allow hands to enter the
storage container.

22
Dispense water from storage container by an outlet fitted with a closure
device or tap.
Clean the storage containers and water coolers regularly.
Cleaning of the hospital environment
Routine cleaning is important to ensure a clean and dust-free hospital
environment. There are usually many micro-organisms present in “visible
dirt”, and routine cleaning helps to eliminate this dirt. Administrative and
office areas with no patient contact require normal domestic cleaning. Most
patient care areas should be cleaned by wet mopping. Dry sweeping is not
recommended. The use of a neutral detergent solution improves the quality
of cleaning. Hot water (80°C) is a useful and effective environmental cleaner.
Bacteriological testing of the environment is not recommended unless seeking
a potential source of an outbreak.
Any areas visibly contaminated with blood or body fluids should be
cleaned immediately with detergent and water.
Isolation rooms and other areas that have patients with known
transmissible infectious diseases should be cleaned with a detergent/
disinfectant solution at least daily.
All horizontal surfaces and all toilet areas should be cleaned daily.
Waste management
Hospital waste is a potential reservoir of pathogenic micro-organisms and
requires appropriate, safe and reliable handling. The main risk associated
with infection is sharps contaminated with blood.2
There should be a person
or persons responsible for the organization and management of waste
collection, handling, storage and disposal. Waste management should be
conducted in coordination with the infection control team.
Steps in the management of hospital waste include:
• generation,
• segregation/separation,
• collection,
• transportation,

23
• storage,
• treatment,
• final disposal.
Waste management practices must meet national and local requirements;
the following principles are recommended as a general guide:
Principles of waste management
Develop a waste management plan that is based on an assessment of the
current situation and which minimizes the amount of waste generated.
Segregate clinical (infectious) waste from non-clinical waste in dedicated
containers.
Transport waste in a dedicated trolley.
Store waste in specified areas with restricted access.
Collect and store sharps in sharps containers. Sharps containers should
be made of plastic or metal and have a lid that can be closed. They should
be marked with the appropriate label or logo, e.g. a biohazard symbol for
clinical (infectious) waste (see picture below).
Mark the storage areas with a biohazard symbol.
Ensure that the carts or trolleys used for the
transport of segregated waste collection are not used
for any other purpose – they should be cleaned
regularly.
Identify a storage area for waste prior to
treatment or being taken to final disposal area.
Treatment of hazardous and
clinical/infectious waste
Each health care facility should identify a method for the treatment of
clinical/infectious waste. This may consist of transportation of infectious
waste to a centralized waste treatment facility or on-site treatment of waste.
Biohazard Symbol

24
Methods of disposal
Sharps:
• autoclave, shred and land-fill or microwave, shred and land-fill or
treat by plasma pyrolysis of puncture-proof containers storing
discarded sharps ;
• deep burial in a secure area. Burial should be 2 to 3 meters deep and
at least 1.5 meters above the groundwater table.
Waste requiring incineration:
• anatomical parts and animal carcasses;
• cytotoxic drugs (residues or outdated);
• toxic laboratory chemicals other than mercury.
Waste that may be incinerated:
• patient-contaminated non-plastics and non-chlorinated plastics.
Waste that should not be incinerated:
• chlorinated plastics;
• volatile toxic wastes such as mercury;
• plastics, non-plastics contaminated with blood, body fluids, secretions
and excretions and infectious laboratory wastes. (Such wastes should
be treated by steam sterilization in autoclavable bags or microwave
treatment. Shredding may follow both these methods. If neither method
is available, chemical treatment with 1% hypochlorite or a similar
disinfectant is recommended. However, excessive use of chemical
disinfectants should be avoided as it may be a health and environmental
hazard).
Radioactive waste (should be dealt with according to national laws).
For further details please refer to WHO’s Safe management of wastes from
health-care activities (1999) at: http://www.who.int/water_sanitation_
health/medicalwaste/wastemanag/en/

25
Figure 1. Practical classification of hospital waste and
methods of treatment
Source: Prüss A, Giroult E and Rushbrook P, eds. Safe Management of Wastes from
Health-care Activities. Geneva, World Health Organization, 1999, page 168. Electronic
access: http://whqlibdoc.who.int/publiations/9241545259.pdf
Hospital Waste
InorganicBiodegradable
(kitchen,
landscape)
Clinical Waste
(infectious)
Hazardous
Cytotxic drugs, toxic
chemicals, radioactive
waste stored in cement
tanks until half life is over
Steam sterilize,
shred deep burial
encapsulation
Sharps Non sharps
To compost
Recyclable Other
To Market
Laboratory
Clinical waste -
from patient care
Plastics Non Plastics Specimens Microbiology
lab waste
Anatomical
parts Animal
carcesses
Steam sterilize
and shred
Disposables
Syringes IV sets
catheters ET
tubes
Blood, body
fluids,
secretions
and
excretions
Steam
sterilize
and shred
Incineration/
Cremation
Landfill Landfill
Landfill
Steam
sterilize
Sewer or
landfill
Ash to
landfill
Hazardous Non-hazardous
Steam sterilize
and shred
Cotton, gauze
dressings
contaminated with
blood, purulent
exudate, secretions
excretions.
Steam sterilize
and shred or
Incineration

26
Laundry
General instructions
Linen
The basic principles of linen management are as follows:
• Place used linen in appropriate bags at the point of generation.
• Contain linen soiled with body substances or other fluids within
suitable impermeable bags and close the bags securely for
transportation to avoid any spills or drips of blood, body fluids,
secretions or excretions.
• Do not rinse or sort linen in patient care areas (sort in appropriate
areas).
• Handle all linen with minimum agitation to avoid aerosolisation of
pathogenic micro-organisms.
• Separate clean from soiled linen and transport/store separately.
• Wash used linen (sheets, cotton blankets) in hot water (70°C to 80°C)
and detergent, rinse and dry preferably in a dryer or in the sun. (Heavy-
duty washers/dryers are recommended for the hospital laundry.) See
table 7 for details.
• Autoclave linen before being supplied to the operating rooms/theatres.
• Wash woollen blankets in warm water and dry in the sun, in dryers
at cool temperatures or dry-clean.
Bedding
• Mattresses and pillows with plastic covers should be wiped over with
a neutral detergent.
• Mattresses without plastic covers should be steam cleaned if they have
been contaminated with body fluids. If this is not possible,
contaminations should be removed by manual washing, ensuring
adequate personnel and environmental protection.
• Wash pillows either by using the standard laundering procedure
described above, or dry clean if contaminated with body fluids.

27
Reprocessing of instruments and
equipment3
The risk of transferring infection from instruments and equipment is
dependent on the following factors:
(1) The presence of micro-organisms, the number and virulence of these
organisms;
(2) The type of procedure that is going to be performed (invasive or
non-invasive), and
(3) The body site where the instrument/and or equipment will be used
(penetrating the mucosal or skin tissue or used on intact skin).
The classification of risk of transmission of infection by instruments and
equipment has been called the “Spaulding Classification”8
. The risk of
transmission is classified according to the site where the instrument is to be
used. Contact sites for instruments may be classified as critical, semi-critical
or non-critical. Table 1 shows these classifications. The level of reprocessing
required is based on the classification and level of risk. Any instrument or
equipment entering into a sterile part of the body must be sterilized. Where
the instrument or equipment will be in contact with mucous membranes or
non-intact skin, it must have undergone disinfection, and where there will
be contact with intact skin, disinfection or cleaning should be used.3
Reprocessing of instruments and equipment in an effective way includes:
(1) cleaning instruments and equipment immediately after use to remove
all organic matter, chemicals and
(2) disinfection (by heat and water or chemical disinfectants) or
(3) sterilization.
For more information on the selection and use of disinfectants see APIC
Guideline for selection and use of disinfectants (1996.) 9
Reprocessing Principles3
There are certain principles that must be applied to ensure instruments and
equipment have been appropriately reprocessed.

28
Table 1. Level of disinfection/cleaning required
for patient care equipment2,3,8
Application
Spaulding-
Classi-
fication
Level
of
risk
Level of
reprocessing
required
Examples Storage of
reprocessed
instrument
Entry or
penetration
into sterile
tissue, cavity
or bloodstream
E.g.
Into vascular
system
Into sterile
cavity
Into sterile
tissue
Critical High Sterile
Sterilization by
steam under
pressure or an
automated low-temp
chemical sterilant
system, other liquid
chemical sterilant or
ethylene oxide
sterilization.
Surgical
procedure,
entry into
sterile tissue,
arthroscopy,
biopsies,
intravascular
cannulation
Sterility must be
maintained.
- packaged items
must be allowed to
dry before removal
from the sterilizer
- the integrity of the
wrap must be
maintained
- wraps should act as
effective bio- barrier
during storage
- store away from
potential
environmental
contaminants
- unpackaged sterile
items must be used
immediately
Contact with
intact non-
sterile mucosa
or non-intact
skin,
Semi-Critical Medium Disinfection
Heat tolerant items
- steam sterilize
where possible
- if unable to steam
sterilize – use
thermal
disinfection
Heat-sensitive items
- low temperature
automated
chemical sterilant
systems
- chemical
disinfectant
Respiratory
therapy,
gastroscopy
Store to protect from
environmental
contaminants.
Intact skin,
no contact
with the
patient
Non-critical Low Items must be
cleaned
- Clean after each
use with detergent
and water.
- if disinfection is
required follow
with appropriate
disinfectant e.g.
70% alcohol.
Beds, sinks,
etc.
Store in a clean dry
place

29
1. Staff Training
Staff who work in the sterilizing service department and are responsible for
the reprocessing of instruments and equipment must have undergone formal
training in how to clean, disinfect and sterilize instruments and equipment.
The level of training must be appropriate for the level of responsibility that
the staff member is expected to undertake.
2. Appropriate Level of Reprocessing
As described above it is essential that the correct level of reprocessing of an
instrument/equipment is chosen according to its intended use. This decision
is made not according to what the instrument or equipment is, but rather
what it is intended use is.
Steam sterilization is recommended as the most effective method to achieve
sterility. However, this may not always be possible as some instruments
may not be able to withstand the temperature or moisture required for
sterilization using steam. Other methods may be used to achieve sterility
such as ethylene oxide or automated low temperature chemical sterilant
systems, provided the manufacturer of the instrument / equipment agrees
that this is an effective means to sterilize them.
3. Servicing of instruments and equipment
Prior to sending medical devices for service they should be reprocessed
appropriately. If however they are unable to be reprocessed before being
repaired, they should be placed in a fluid resistant plastic bag or container
and labelled appropriately before being sent for repair.
4. Selected items that require special reprocessing.
Items that require special treatment include:
• Endoscopes,
• Respiratory and anaesthetic apparatus,
• Diagnostic ultrasonic transducers.
Instruments and equipment like these may not be able to withstand the
heat or the moisture of steam or thermal disinfection or even some chemical
agents. They therefore may require very delicate measures to reprocess them.
It is essential that equipment that will not withstand the regular types of

30
reprocessing must only be reprocessed in a department that has the proper
facilities. The manufacturers’ instructions must be followed.
5. Storage
Storage of instruments and equipment is an essential component in ensuring
the product maintains its level of sterilization or disinfection. Most
instruments and equipment are dry and packaged once they have been
sterilized. They should be stored in a clean, dry environment and protected
from any damage. Correct storage of sterile instruments and equipment is
a critical component in keeping them sterile.3
6. Patient care equipment
Any equipment that is used for a patient, and touches only their intact skin,
such as bedpans, urinals, commode chairs, blood pressure cuffs etc. should
be cleaned or cleaned and disinfected – usually in hot water (at least 700
C).
Cleaning, disinfection and sterilization
Cleaning
Prior to any reprocessing to achieve disinfection or sterility all instruments
and equipment MUST be cleaned. If not cleaned properly, organic matter
may prevent the disinfectant or sterilant from having contact with the
instrument/equipment and may also bind and inactivate the chemical activity
of the disinfectant.10
If an instrument/equipment is unable to be cleaned
then it is unable to be sterilized or disinfected.
After an instrument has been used, prior to it drying, it should be washed
to remove any gross soiling. At this stage, detergent and water is appropriate
to use.
There are four main methods used for cleaning of instruments and
equipment:
1. Manual cleaning
All surfaces of the instrument/equipment must be cleaned taking care to
reach all channels and bores of the instrument. If instruments are being
washed manually the following procedure should be followed:

31
• wear personal protective equipment (plastic apron, thick rubber gloves,
eye protection, surgical mask and/or face shield),
• remove any gross soiling on the instrument by rinsing in tepid water
(15-18 degrees),
• take instrument apart – fully and immerse all parts in warm water
with a biodegradable, non-corrosive, nonabrasive, low foaming and
free rinsing detergent or use an enzymatic cleaner if necessary,
• ensure all visible soil is removed from the instrument – follow
manufacturers’ instructions,
• rinse in hot water (unless contraindicated),
• dry the instrument either in a drying cabinet, or hand dry with clean
lint-free cloth,
• inspect to ensure the instrument is clean.
2. Enzymatic cleaners
Used for fibreoptic instruments and accessories, and other items that are
difficult to clean. These products are hazardous and care should be taken
when in contact with them.
3. Ultrasonic cleaners and automated washers
Ultrasonic cleaners and automated washers are recommended for cleaning
basic instruments that can withstand this process. Using a machine to wash
the instruments will cut down on the handling of the instruments. These
cleaners must be compliant with national guidelines and standards, and must
be used according to the manufacturers’ instructions. Ultrasonic cleaners do
not disinfect the instruments. By causing high frequency, high-energy sound
waves to hit the instrument/equipment, the soiling matter drops off the
instrument, or becomes easy to remove during the rinsing process.
These cleaners are not appropriate for use on cannulated instruments
(they cannot clean inside the instrument), plastic materials, two or more
different metals, or some glass instruments, syringes and lenses. Daily
efficiency tests should be done.3
4. Disinfection
Disinfection removes micro-organisms without complete sterilization.
Disinfection is used to destroy organisms present on delicate or heat-sensitive

32
instruments which cannot be sterilized or when single use items are not
available. Disinfection is not a sterilizing process and must not be used as a
convenient substitute for sterilization. Thermal disinfection is not appropriate
for instruments that will be used in critical sites (see Table 1) as these
instruments must be sterile.
Certain products and processes will provide different levels of disinfection.
These levels are classified as:2,3
(a) High-level disinfection: Destroys all micro-organisms except some
bacterial spores (especially if there is heavy contamination).
(b) Intermediate disinfection: Inactivates Mycobacterium tuberculosis
vegetative bacteria, most viruses and most fungi, but does not always
kill bacterial spores.
(c) Low-level disinfection: Can kill most bacteria, some viruses and some
fungi, but cannot be relied on to kill more resistant bacteria such as
M. tuberculosis or bacterial spores.
The two methods of achieving disinfection are thermal and chemical
disinfection.
1. Thermal disinfection (pasteurization)
If an instrument is able to withstand the process of heat and moisture and
is not required to be sterile, then thermal disinfection is appropriate. By
using heat and water at temperatures that destroy pathogenic, vegetative
agents, this is a very efficient method of disinfection.
The level of disinfection depends on the water temperature and the duration
the instrument is exposed to that temperature.
Surface Temperature
(o
C)
Minimum disinfection time required
(minutes)
90 1
80 10
75 30
70 100
Table 2. Minimum surface temperature and time required
for thermal disinfection3

33
2. Chemical disinfection
The performance of chemical disinfectants is dependent on a number of factors
including: temperature, contact time, concentration, pH, presence of organic
or inorganic matter and the numbers and resistance of the initial bioburden
on a surface.3
Instrument grade disinfectants are classified as high, intermediate or low
level. When used according to the manufacturers’ guidelines, disinfectants
will fall into one of these levels – see Table 3.
Selection of disinfectant
There is no single ideal disinfectant. Different grades of disinfectants are
used for different purposes. Only instrument grade disinfectants are suitable
to use on medical instruments and equipment. Hospital grade or household
grade disinfectants must not be used on instruments, they are only suitable
for environmental purposes.
Monitoring of the disinfectant is important if it is a multi-use solution.
It is important that it is stored correctly and according to the manufacturers
instructions. Be sure not to contaminate the solution when pouring out for
use.
Glutaraldehyde is generally the most appropriate chemical disinfectant
that will provide high-level disinfection. This chemical must be used under
very strict controlled conditions and in a safe working environment.
Level of Disinfection Activity against microbes
High level chemical
disinfectant
Inactivates all microbial pathogens except
where there are large numbers of bacterial
spores
Intermediate level disinfectant Inactivates all microbial pathogens except
bacterial spores
Low level disinfectant Rapidly inactivate most vegetative bacteria
as well as medium sized lipid-containing
viruses, but may not destroy bacterial
spores, mycobacteria, fungi or small non-
lipid viruses
Table 3. Chemical Disinfectant – level of disinfection achieved3

34
Glutaraldehyde 2% is an appropriate high level disinfectant for endoscopes,
respiratory therapy equipment and for material that is destroyed by heat.
An immersion time of > 20 min is required. Flexible endoscopes are very
easy to damage and particularly difficult to disinfect. It is extremely important
that meticulous mechanical cleaning must always precede sterilization or
disinfection procedures. For the selection of disinfectants see APIC Guideline
for selection and use of disinfectants (1996.)9
Sterilization
Sterilization is the destruction of all micro-organisms and can be achieved
by either physical or chemical methods.2
Sterilization is necessary for medical
devices penetrating sterile body sites. (see Table 1) Cleaning to remove visible
soiling in reusable equipment should always precede sterilization. All materials
must be wrapped before sterilization. Only wrapped/packed sterilized
materials should be described as sterile. Before any instrument or equipment
goes under the process of steam sterilization, the following should be checked:
(1) Ensure that the instrument can withstand the process (e.g. steam
under pressure),
(2) Ensure that the instrument has been adequately cleaned,
(3) Ensure that the instrument does not require any special treatment,
(4) Ensure that records of the sterilisation process and for the traceability
of instruments are kept.
Instruments and equipment will only be sterile if one of the following
sterilizing processes is used:
(1) Steam under pressure (moist heat),
(2) Dry heat,
(3) Ethylene oxide,
(4) Automated environmentally sealed low-temperature peracetic acid,
hydrogen peroxide plasma and other chemical sterilant systems or
sterilants, or
(5) Irradiation.
The above sterilizing methods are designed to give a sterility assurance
level of at least one in a million or 10-6
(see glossary) as long as the process
is validated and is according to the manufacturers’ guidelines.

35
Ultraviolet light units, incubators, microwave ovens and domestic ovens
must not be used for sterilizing.
1. Steam under pressure (moist heat) sterilization3
This is the most efficient and reliable method to achieve sterility of
instruments and equipment. This method sterilizes and dries the sterile
package as part of the cycle. This is recommended in office-based practice.
There are several types of steam under pressure sterilizers (also called
autoclaves):
Downward (gravity) displacement sterilizers (jacketed and non-jacketed)
- these are designed for the sterilisation of waste, solutions and instruments.
Self-contained (benchtop) sterilizers – these are recommended for office-
based practice as they are able to do small quantities or fairly simple items.
Benchtop sterilizers do not take wrapped items and therefore items must be
used immediately after they are removed from the sterilizer. There will be
differences in the models and types of features that are offered may vary.
These variations may include: drying stage, ability to take packaged and
unwrapped items, systems to monitor temperature, pressure and holding
time.
Prevacuum (porous load) sterilizers – these are not suited for liquid
sterilisation but are optimised for sterilisation of clean instruments, gowns,
drapes, towelling and other dry materials required for surgery.
2. Dry heat sterilization3
Dry heat sterilisation is caused by hot air that destroys pathogens by the
process of oxidation. Dry heat sterilizes have had limited value because it is
difficult to maintain the same temperature throughout the load, while the
high temperatures and long time required to achieve sterility makes this
method undesirable for many situations. The manufacturers’ instructions
must be followed, the door to the unit must not be opened while in sterilizing
cycle.
3. Ethylene Oxide (EO)3
Ethylene oxide gas is appropriate to use for sterilization of instruments/
equipment made from heat labile materials or those devices that contain
electronic components. The time required to process the instrument is

36
dependent on the temperature, humidity and concentration level of the gas.
The gas must penetrate the packaging and reach all surfaces of the
instrument/equipment requiring sterilization. The time for such a process
is between 12 hours to over 24 hours. Because EO is toxic, this gas is restricted
in health care facilities and must be used according to strict guidelines to
ensure staff safety. The manufacturer’s instructions must be followed for
the packaging, sterilization process, validation and aeration process.
4. Automated chemical (low temperature) systems3
Hydrogen peroxide plasma in a fully automated cycle can achieve low
temperature, low moisture sterilization within a 45-80 minute cycle
depending on the model of sterilizer used. The packaging used must be non-
woven/non-cellulose polypropylene wraps.
Peracetic acid is a low-temperature sterilization method. Peracetic acid 0.2%
is placed in an environmentally sealed chamber and fully automated
processing system. The process achieves moist, low temperature sterilization
within 25-30 minutes.
5. Irradiation
Gamma radiation is available from some commercial gamma irradiation
facilities. However, it is not readily available for use in health care facilities.
Only those instruments and equipment that have undergone the entire
sterilizing process can be regarded as sterile. Items must be wrapped or
packaged appropriately to be considered sterile.2
Materials for packaging include:
• Paper - this prevents contamination if it remains intact. It maintains
sterility for a long period, can act as a sterile field and can also be used
to wrap dirty devices after the procedure.
• Non-woven disposable textiles.
• Containers - these can be used only if they contain material intended
for a single treatment procedure for a single patient.
• The end-user must check the physical integrity of the package before
use.
Quality control parameters for the sterilization process which also serve
as a check list for the Sterilization Department include:

37
• Load number,
• Load content,
• Temperature and time exposure record chart,
• Physical/chemical testing,
• Biological testing, e.g. using Bacillus subtilis.
Regular engineering maintenance on sterilization equipment must be
performed and documented.
For details refer to Young, Jack H. and Reichert, Marimargaret. Sterilization
Technology for the Health Care Facility, 2 ed. New York, USA, Aspen Publishers,
1997.
Boiling of medical devices for reuse is not recommended since it does not
guarantee sterility.
However, in certain resource-poor situations where steam sterilization is
not possible, these items should be thoroughly cleaned and subjected to a
cycle in a pressure cooker for 30 minutes.
Special consideration – Creutzfeldt-Jacob disease 3
The only infectious agent that requires special treatment in order to ensure
disinfection is the Creutzfeldt-Jacob disease (CJD)-prion. Historically, CJD
has been transmitted through implanted brain electrodes that were disinfected
with ethanol and formaldehyde after use on a patient known to have CJD.
Iatrogenic transmission has been observed in some patients who have been
recipients of contaminated human growth hormone, gonadotropin and
corneal, pericardial and dura mater grafts.9
These prions resist normal
inactivation methods.
If material has been contaminated with prions or contamination is
suspected the preferred method is steam sterilization for at least 30 minutes
at a temperature of 132o
C in a gravity displacement sterilizer. If a prevacuum
sterilizer is used, 18 minutes at 134o
C has been found to be effective. Semi
critical and non-critical items may be immersed in 1N sodium hydroxide, a
caustic solution, for 1 hour at room temperature and then steam sterilized
for 30 minutes at a temperature of 121 o
C.

38
Table 4. Common disinfectants used for environmental cleaning in hospitals
Note: A neutral detergent and warm water solution should be used for all routine and
general cleaning. When a disinfectant is required for surface cleaning, e.g. after
spillage or contamination with blood or body fluids, the manufacturer’s
recommendations for use and occupational health and safety instructions should be
followed.
Disinfectants Recommended use Precautions
Sodium
hypochlorite 1%
in-use dilution,
5% solution to be
diluted 1:5 in
clean water
Disinfection of material
contaminated with blood
and body fluids
• Should be used in well-
ventilated areas
• Protective clothing
required while handling
and using undiluted
• Do not mix with strong
acids to avoid release of
chlorine gas
• Corrosive to metals
Bleaching
powder
7g/litre with 70%
available chlorine
Table 6 shows
dilutions for
bleach
Toilets / bathrooms
- may be used in place of
liquid bleach if this is
unavailable
Same as above
Alcohol (70%)
Isopropyl, ethyl
alcohol,
methylated spirit.
Smooth metal surfaces,
tabletops and other
surfaces on which bleach
cannot be used.
• Flammable, toxic, to be
used in well- ventilated
area, avoid inhalation.
• Kept away from heat
source, electrical
equipment, flames, hot
surfaces.
• Allow it to dry
completely, particularly
when using diathermy
as it can cause
diathermy burns.
Detergent with
enzyme
Cleaning endoscopes,
surgical instruments
before disinfection is
essential
Manual cleaning is an
essential part of the
cleaning process.

39
Table 5. Common disinfectants/antiseptics used for skin cleansing
Hypochlorite solutions: In some resource-poor settings, hypochlorite is
the only available disinfectant. Hypochlorite will need to be diluted so that
appropriate solutions of 0.5%, 1% and 2% available chlorine can be made.
The dilution of hypochlorite solution is outlined in Table 6.
Standard procedure for cleaning and disinfection of various reusable
equipment is provided in Table 7.
Disinfectants Recommended use Precautions
Chlorhexidine
Combined with
alcohol or
detergents
Antiseptic, for skin and
mucous membranes,
preoperative skin
preparation, disinfection of
hands
• Inactivated by soap,
organic matter
• Relatively non-toxic
• Do not allow contact
with brain meninges,
eye or middle ear
Quaternary
ammonium
compounds
May be combined
with chlorhexidine
Antiseptic, for cleaning
dirty wounds
• Relatively non-toxic
• dilutions are likely to
get contaminated
and grow gram
negative bacteria
• Use in correct
dilution and only
pour enough
solution for single
patient use
• Discard any solution
that is left over after
single use
• Do not top up stock
bottle

40
Table 6. Hypochlorite solution of 0.5%, 1% and 2% available chlorine
Note: Bleach solution becomes unstable rapidly, hence it needs to be freshly prepared
daily or changed on becoming dirty/turbid. Chlorine bleach can be corrosive. Protect
metal instruments by thoroughly rinsing them with water after soaking for 10
minutes.
For further information about preparing bleach solutions for disinfection
purposes in resource poor settings please view the WHO and CDC combined
document “Infection Control for Viral Haemorrhagic Fevers in the African
Health Care Setting.” (1998) http://www.cdc.gov/ncidod/dvrd/spb/
mnpages/vhfmanual.htm
Product Chlorine
available
How to
dilute to
0.5%
How to
dilute to
1%
How to
dilute to
2%
Sodium hypochlorite
– liquid bleach
3.5% 1 part
bleach to 6
parts
water
1 part
bleach to
2.5 parts
water
1 part
bleach to
0.7 parts
water
Sodium hypochlorite
– liquid
5% 1 part
bleach to 9
parts
water
1 part
bleach to 4
parts
water
1 part
bleach to
1.5 parts
water
NaDCC (sodium
dichlor –
oisocyanurate) --
powder
60% 8.5 grams
to 1 litre
water
17 grams
to 1 litre
water
34 grams
to 1 litre
water
NaDCC (1.5g / tablet)
-- tablets
60% 6 tablets
to 1 litre
water
11 tablets
to 1 litre
water
23 tablets
to 1 litre
water
Chloramine --
powder
25% 20 grams
to 1 litre
water
40 grams
to 1 litre
water
80 grams
to 1 litre
water

41
Table 7. Standard procedure for cleaning and disinfection
of reusable equipment
Used personal protective equipment
Equipment Standard procedure Comments
N 95 or standard surgical
mask
Use disposable only
Discard in appropriate waste
bag according to the health
care facility guidelines
HEPA (P100) mask
Use disposable filters only
Separate the filters from the
mask and discard the filter.
Clean the mask with detergent
and water, dry and disinfect with
70% alcohol before reuse
Discard the filters in
appropriate bag according to
the health care facility
guidelines
Eye protector/goggles/face
shield
Use of disposable is
recommended
If reusable: clean with detergent
and water, dry, and disinfect
with 70 % alcohol or soak in 1%
hypochlorite solution for 20
minutes and rinse and dry.
If disposable: discard in
appropriate waste bag
according to the health care
facility guidelines
Gown
recommended
If reusable: launder as per the
health care facility guidelines for
soiled linen.
For example: launder in hot
water (70° - 80° C) if possible.
OR
Soak in clean water with
bleaching powder 0.5% for 30
minutes.
Wash again with detergent and
water to remove the bleach
facility guidelines
If reusable: ideally dry in a
clothes drier or in the sun
Apron
recommended
If reusable
Clean with detergent and water,
dry, disinfect with 70% alcohol
facility guidelines
Cap and shoe covers
recommended
health care facility guidelines for
soiled linen.
water (70° - 80° C) if possible.
OR
bleaching powder 0.5% for 30
minutes
Wash again with detergent and
facility guidelines
If reusable: ideally dry in a
clothes drier or in the sun
Gloves
Use disposable only
Discard in the appropriate
waste bag according to the
health care facility guidelines
Reusable boots Clean with detergent and water,
dry, disinfect with 70% alcohol

42
Solid linen
Linen If reusable: launder as per the
institutional guidelines for
soiled linen.
water (70° - 80° C) if
possible.
OR
bleaching powder 0.5% for
30 minutes.
Wash again with detergent
and water to remove the
bleach.
Ideally dry in a clothes
drier or in the sun.
Mops
wash mops
separately from
other cloth or linen
institutional guidelines for
soiled linen.
water (70° - 80° C) if
possible.
OR
bleaching powder 0.5% for
30 minutes
Wash with detergent and
Mops should not be
left wet.
Mops should be
changed routinely and
immediately following
the cleaning of blood,
body fluids secretions
and excretions, after
cleaning a
contaminated area,
operating rooms or
isolation rooms.
Store dry

43
Needles and
syringes
Use disposable
only
Discard in puncture proof
container with international
biohazard symbol.
When puncture proof
container is two thirds
full, seal it and send for
disposal.
Needle destroyer are
not recommended
(contaminated aerosols
may arise while
destroying the needles).
Syringe cutter are not
recommended as they
can cause splashes.
Soiled patient care
equipment, e.g.
stethoscope, blood
pressure apparatus
Clean with detergent and
water and dry.
May be wiped with sodium
hypochlorite 1-2% or 70%
alcohol and dried after
cleaning.
Always clean between
patient use.
Cuffs of blood
pressure apparatus
Clean with soap and water
followed by appropriate
disinfectant.
For example, wash in hot
water with detergent
If material is not washable,
wipe with sodium
hypochlorite 1-2% or 70%
alcohol and dry after
cleaning.
Ideally dry in sun after
washing.
If set aside for isolation
room: should remain
in the isolation room
until discharge of the
patient when it must
be decontaminated
appropriately.
Instruments Remove all protein, organic,
inorganic matter at point of
generation (e.g. blood and
body secretions) by cleaning
with soap and water.
Return to the sterilizing
service department for
appropriate reprocessing.
AMBU bag and
mask
Clean with detergent, dry
and send to the sterilizing
service department.
Change mask after
each patient.
Used patient care equipment (needles, syringes, surgical instruments
and other equipment)

44
Furniture – bed, bed
stand, couch, frames,
table, I/V stand,
wheelchair, etc.
water and dry.
Wipe with disinfectant such
as 70% alcohol or 1%
sodium hypochlorite and
dry after cleaning.
Keep environment
clean
Mattress/pillows
(always cover with
plastic covers)
water between patients and
as required.
Wipe over with disinfectant
such as 70% alcohol or 1%
sodium hypochlorite.
Discard pillow if cover
of pillow is damaged.
Change the cover of
the mattress if torn or
discard mattress
depending on the
institutional
guidelines.
Telephones,
dressing trolleys
water, and dry.
Disinfect with 70% alcohol
daily.
Ventilator,
suction equipment
and mask
Clean machine with
detergent and water, dry,
and disinfect with 70%
alcohol.
Filters should be single use
and discarded.
Mask is single patient use
and should be cleaned at
least daily and also as it
becomes soiled.
Discard mask after
each patient. Change
tubing/filters every
48 hours.
Ensure tubing is
single patient use.
Toys Use for one single patient.
water, and dry. If micro
organism is transmitted via
contact transmission such
as SARS, VHF, MRSA, VRE,
wipe with disinfectant or 1-
2% hypochlorite solutions.
If patient has
communicable disease
or micro organism
that is transmitted via
contact transmission
such as SARS, VHF,
MRSA and is unable
to be cleaned, destroy
after discharge or
death of the patient.
Equipment in the isolation unit (tables, beds, lockers, trolleys, etc)

45
Floor Damp mop with detergent
and water.
Clean twice in each
shift and more often if
needed.
Spillage – of blood,
body fluids,
secretions and
excretions
Wipe with paper towel or
reusable cloth to soak up the
majority of the spill.
water.
Dry the area.
Discard paper towel
into clinical
(infectious) waste
If using reusable cloth
– separate into
contaminated linen
bag
Commode,
toilet seats
Clean seat and arms with
detergent and water and dry
whenever used.
Wipe with disinfectant for
example 1-2% sodium
hypochlorite and dry after
cleaning
Whenever soiled, clean
with detergent first
and then wipe with
disinfectant, for
example. Sodium
hypochlorite-1-2%
and dry after cleaning.
Environmental surfaces in the patient’s room
Keep used dirty items separate from clean and sterile ones to prevent
cross–contamination

46
Health care workers (HCW) are at risk of acquiring infection through
occupational exposure.2
Hospital employees can also transmit infections to
patients and other employees. Thus, an employee’s health programme must
be in place to prevent and manage infections in hospital staff.
Employees’ health should be reviewed at recruitment, including
immunization history and previous exposures to communicable diseases
(e.g. tuberculosis) and immune status. Some previous infections such as
varicella-zoster virus may be assessed by serological tests.
Immunization recommended for staff includes: hepatitis A and B,
influenza, measles, mumps, rubella, tetanus, and diphtheria. Immunization
against varicella, rabies may be considered in specific cases. The Mantoux
skin test will document a previous tuberculosis (TB) exposure.
Specific post-exposure policies must be developed, and compliance ensured
for a number of infectious diseases for example: human immunodeficiency
virus (HIV), viral hepatitis, severe acute respiratory syndrome (SARS),
varicella, rubella and tuberculosis.
Health care workers with infections should report their illnesses/incident
to staff clinics for further evaluation and management.
Exposure to human immunodeficiency
virus (HIV)
The route of transmission for HIV is person to person via sexual contact,
sharing of needles contaminated with HIV, infusions that are contaminated
with HIV, transplantation of organs or tissues that are infected with HIV.11
5Care of Health Care Workers

Care of Health Care Workers
47
The risk of a health care worker acquiring HIV after a needlestick or other
“sharps” injury is less than 0.5%.11
Risk reduction must be undertaken for
all bloodborne pathogens, including: adherence to standard precautions using
personal protective equipment and appropriate use of safety devices and a
needle disposal system to limit sharps exposure. Training for health care
workers in safe sharps practice should be ongoing.
Information on preventive measures must be provided to all staff with
potential exposure to blood and blood products. Policies which are in keeping
with the local and national guidelines must include screening of patients,
disposal of sharps and wastes, protective clothing, managing inoculation
accidents, sterilization and disinfection.
Hospital policy must include measures to obtain serological testing of
source patients promptly where necessary, usually with the patient’s
informed consent. Post exposure prophylaxis should be started as per local
or national guidelines.
Exposure to hepatitis B virus
The route of transmission for hepatitis B virus is through body substances
such as blood and blood products, saliva, cerebrospinal fluid, peritoneal,
pleural, pericardial and synovial fluid, amniotic fluid, semen and vaginal
secretions and any other body fluid containing blood.11
Following standard
precautions is important, but immunization is the best way of preventing
transmission to health care staff.
All HCWs at risk must be vaccinated.
Staff infected with blood-borne pathogens may transmit these infections
to patients and require careful evaluation with respect to their duties. This
status should not be used as cause for discrimination.
Exposure to hepatitis C virus
The route of infection is mainly parenteral. Sexual transmission does occur
but is far less frequent.11
No post exposure therapy is available for hepatitis
C, but seroconversion (if any) must be documented. As for hepatitis B viral
infection, the source person must be tested for HCV infection. For any
occupational exposure to bloodborne pathogens, counselling and appropriate
clinical and serological follow-up must be provided.

48
Sharp injuries
Needlestick injuries are the most common of sharps injuries, although other
contaminated sharp instruments may also cause injuries. All health care
workers with potential exposure should be vaccinated. For other personnel,
the risk of hepatitis B, hepatitis C and HIV infection should be assessed and
appropriate immunization or chemoprophylactic steps taken.
Immediate treatment of such injuries should encourage washing
thoroughly with running water and an antiseptic solution. Consult the
infection control team for further advice.
An incident reporting system should be in place. It should not be seen as
punitive; active support by managers should encourage prompt and accurate
reporting.
Tuberculosis
Health care workers have varying risks for exposure to tuberculosis (TB).
Health care workers at the greatest risk of exposure are those working in
TB-risk areas such as medical wards, chest clinics, bronchoscopy units,
radiology units, TB laboratories, HIV wards and autopsy rooms. If a staff
member has been exposed to TB they should report to the Infection Control
Practitioner or the Staff Health Nurse depending on the hospital protocol for
health care worker exposures.
Meningococcal meningitis
Transmission of meningococci to health care staff is most likely within 24
hours of admission of the patient, prior to the patient receiving appropriate
antibiotic/chemoprophylaxis. Health care workers in close respiratory contact
with such cases should receive chemoprophylaxis with ciprofloxacin or an
effective alternative agent. Close respiratory contact with the patient includes
mouth-to-mouth contact, sharing of drink containers or cigarettes.
SARS
The health care facility should have a clear set of guidelines for preventing
staff exposure to SARS. Health care workers in contact with suspected or

Care of Health Care Workers
49
probable SARS patients should be monitored daily for signs and symptoms
of SARS, particularly for changes in temperature. If staff members indicate
any signs or symptoms of SARS, they should be assessed by the infection
control practitioner or the infection control team as to the appropriateness
of home isolation. (See Chapter 6 for infection control procedures for SARS
infections).
Other infections; varicella, influenza,
pertussis, diphtheria, rabies
Transmission of these micro-organisms may be uncommon, but policies to
manage staff exposure should be developed. Vaccination of hospital staff
against varicella is recommended. Influenza vaccinations should be given
yearly. Rabies vaccinations may be appropriate in some facilities in countries
where rabies is enzootic.

50
Severe acute respiratory syndrome (SARS)
Causative agent
Severe acute respiratory syndrome (SARS) is a recently recognized febrile
respiratory illness that was first seen in southern China in November 2002.
The organism responsible for the disease is a novel coronavirus – SARS Co-V.12
Mode of transmission
• The novel coronavirus has been found in sputum, tears, blood, urine
and faeces. 12
• The organism is predominantly transmitted through droplets
discharged through the respiratory tract of the infected person,
especially during coughing, sneezing and talking. The chances of
infection are therefore highest during close, person-to-person or face-
to-face contact with someone who has symptoms of SARS.
• The organism can be shed in the faeces for 30 days and has been
shown to survive on hard surfaces for more than 24 hours. 12
• Therefore, contact transmission is an important component, either
directly (person-to-person) or via contaminated environmental surfaces
or equipment.
• Airborne transmission has not totally been ruled out.
The incubation period is 2-10 days with a median of 4.5 days. The risk
of transmission during the prodrome phase of the illness appears to be low.
Prior to having any symptoms patients are not thought to be infectious.
6Infection Control Precautions
for Selected Situations

Infection Control Precautions
51
Susceptibility
Cases of SARS have been reported mainly among persons who had direct,
close contact with an infected person, such as household members or health
care workers who cared for a symptomatic patient(s). Exposure may occur
before it is recognized that the person has SARS and additional precautions
have not been implemented.
Clinical picture in SARS patients
The clinical picture of SARS closely resembles that of influenza during the
prodromal phase (see Figure 2).
The common clinical features are:
• During days 1-3, the patient has a high fever (>380
C), headache,
muscle ache and respiratory symptoms such as dry cough.
• In addition, some clusters of SARS patients have shown prominent
gastrointestinal symptoms (mainly diarrhoea).
• From about days 4-5, the illness progresses into a lower respiratory
phase characterized by shortness of breath and worsening of cough.
• Chest X-ray changes are suggestive of atypical pneumonia: early, small
hilar or focal interstitial infiltrates, progressing to more generalized
patchy interstitial infiltrates.
Source: World Health Organization. Regional Office for Western Pacific. Interim
guidelines for national SARS preparedness. Manila: WHO, 2003, page 6.
Figure 2. Clinical picture in SARS patients
Exposure to SARS
fever, myalgia,
dry cough,
headache (early
symptoms
non-productive cough
shortness of breath
Incubation period Prodrome
Lower respiratory
phase
~2 to 10 days ~1 to 2 days From day 4 onwards
Recovery
approx 90%
Acute respiratory
disress syndrome
approx 10%
Infectivity
None or very low Low Very high

52
• Low white cell count and platelet count; abnormal liver function are
common; renal function is usually normal.
• From about day 7, almost 90% of cases will begin to improve over the
next 1-2 weeks. About 10% of cases will have a severe respiratory
illness requiring more intensive support such as oxygen therapy,
intubations or mechanical ventilation. Currently there is a high case
fatality rate in this group. Case fatality rates are higher in the elderly
and those with concurrent illnesses.
Clinical case definition of SARS13
The following clinical case definition of SARS has been developed for public
health purposes.
A person with a history of:
Fever (> 380
C )
AND one or more symptoms of lower respiratory tract illness (cough,
difficulty in breathing, shortness of breath)
AND radiographic evidence of lung infiltrates consistent with pneumonia
or RDS OR autopsy findings consistent with the pathology of pneumonia
or RDS without an identifiable cause
AND no alternative diagnosis can fully explain the illness.
Laboratory case definition of SARS13
A person with symptoms and signs that are clinically suggestive of SARS
AND
with positive laboratory findings for SARS-CoV based on one or more of
the following diagnostic criteria:
Polymerase Chain Reaction (PCR) positive for SARS-CoV
PCR positive using a validated method from:
At least two different clinical specimens (e.g. nasopharyngeal and stool)
OR

53
The same clinical specimen collected on two or more occasions during the
course of the illness (e.g. sequential nasopharyngeal aspirates)
OR
Two different assays or repeated PCR using the original clinical sample on
each occasion of testing.
Seroconversion by Enzyme Linked Immuno-Sorbent Assay (ELISA) or
Immuno Fluorescent Assay (IFA)
Negative antibody test on acute serum followed by positive antibody test
on convalescent phase serum tested in parallel
OR
Fourfold or greater rise in antibody titre between acute and convalescent
phase sera tested in parallel.
Virus isolation
Isolation in cell culture of SARS-CoV from any specimen
AND
PCR confirmation using a validated method.
Testing should be undertaken only in a national or regional reference
laboratory as per WHO recommendations:
Use of laboratory methods for SARS diagnosis, http://www.who.int/
csr/sars/labmethods/en/
WHO will assist resource-poor countries to confirm their first cases of
SARS through laboratory collaboration. See: http://www.who.int/csr/sars/
postoutbreak/en/print.html
Infection control precautions for SARS
Infection control for SARS involves a two-level approach:
Standard precautions (see Chapter 3) which apply to all patients at all
times including those who have SARS, and
Additional precautions (see Chapter 3) which should include:

54
• droplet precautions,
• contact precautions,
• airborne precautions.
A combination of these precautions will give the appropriate infection
control.
Strict adherence to these precautions is required to break the chain of
infection transmission.
The essential steps include:
• Placing the patient in a single room – isolation, and avoiding
unnecessary contact;
• Use of personal protective equipment for all in close proximity to the
patient or the patient’s environment;
• Strict personal hygiene of staff (e.g. not touching face or mask, eyes
or hair when in the patient’s room, ensuring hands are washed after
leaving the patients’ room);
• If transport of the patient is required, the patient should wear a surgical
mask.
Annex 3 summarizes these steps so infection control practitioners can
ensure all precautions are in place.
Transportation of patients with SARS
Limit the movement and transport of patients from the isolation room/area
for essential purposes only. If transportation is required out of the isolation
room/area the patient should wear a surgical mask and a gown where
possible. All staff involved in the transportation should wear personal
protective equipment.
Personal protective equipment used for SARS
Personal protective equipment reduces the risk of infection if used correctly.
It includes:
• Gloves (non sterile),
• mask (N95 preferable),

55
• long sleeved cuffed gown,
• plastic apron if splashing of blood, body fluids, excretions and secretions
is anticipated,
• protective eyewear/goggles/visors/face shields,
• cap (to be used in high risk situations where there may be increased
aerosols).
Who should use personal protective equipment?
Anyone who enters the isolation room/area including:
• All health care workers who provide direct patient care (e.g. doctors,
nurses, radiographers, physiotherapists);
• all support staff including medical aides and cleaning staff;
• family members or visitors;
• all laboratory workers handling specimens from a patient with SARS;
• all sterilizing service workers handling equipment that requires
decontamination and has come from a patient with SARS.
Waste disposal
All waste generated in the isolation room/area should be disposed of in
suitable containers or bags. All waste from a SARS room should be treated
as clinical (infectious) waste.
Staff responsible for routinely removing waste from isolation wards/
areas should wear full personal protective equipment when removing waste.
One waste disposal bag is usually adequate, providing waste can be placed
in the bag without contaminating the outside of the bag. If that is not
possible, two bags are needed (double bagging).
Liquid waste such as urine or faeces can be safely flushed into the sewer
system if there is an adequate sewage system in place. The risk from sewage
is usually negligible, due to a number of factors such as dilution of the
pathogen, etc. Some evidence exists that describe the potential involvement
of a suboptimal sewage system in the transmission of SARS Co-Virus. Where
there is no adequate sewage system, urine and faeces should be
decontaminated prior to being flushed into the sewage system. Depending
on local circumstances the sewage can be mixed with a disinfectant solution

56
(e.g. bleach) in the bedpan and flushed away, or dug in the ground and
covered with a disinfectant solution (bleach).
Waste disposal bags should include appropriate biohazard labelling, and
be treated and disposed of as per the policy of the hospital and in accordance
with national regulations pertaining to hospital waste.
Specimen collection and transportation
Following standard precautions, all specimens should be regarded as
potentially infectious and staff should adhere rigorously to protective
measures in order to minimize exposure.
• Place specimens for transport in leak-proof specimen bags, which have
a separate sealable pocket for the specimen (i.e. a plastic biohazard
specimen bag). Personnel who transport specimens should be trained
in safe handling practices and decontamination procedures in the case
of a spill.
• Clearly mark the accompanying request form as “suspected or probable
SARS”.
• Notify the laboratory by telephone that the specimen is “on its way.”
• Hand deliver specimens, where possible. Pneumatic tube systems should
not be used to transport specimens.
Hospital screening, admission procedures and triage
Hospitals need to be prepared for the management of SARS cases.
In case a patient meets the criteria for a suspect SARS case, the patient
should immediately be isolated and infection control precautions instituted.
For further information see WHO Alert, verification and public health
management of SARS in the post-outbreak period: http://www.who.int/
csr/sars/postoutbreak/en/
Care of SARS patients in isolation
Suspect and probable SARS cases should be cared for in single rooms to
prevent direct or indirect transmission.
Strict adherence to the infection control guidelines is absolutely necessary to
prevent transmission of infection between patients and from patients to health
care workers and others.

57
Care of patients in isolation units becomes a challenge when there are
inadequate resources, or when the source patient has poor hygienic habits,
deliberately contaminates the environment, or cannot be expected to assist
in maintaining infection control precautions to limit transmission of micro-
organisms (children, patients having altered mental state, or elderly).
In caring of SARS patients in isolation the following guidelines are to be
followed:
Preparation of the isolation room
• Ensure additional precautions by indicating with appropriate signage
on the door (for example, biohazard logo).
• Place a log book at the entrance of the isolation room. All health care
workers or visitors entering the isolation area must sign the log book.
• Remove all non-essential furniture. The remaining furniture should
be easy to clean and should not conceal or retain dirt or moisture,
either within or around it.
• Collect linen as needed.
• Stock the hand basin with suitable supplies for hand washing.
• Place appropriate waste bags in the room on a foot-operated bin.
• Place a puncture-proof container for sharps in the room.
• Keep the patient’s personal belongings to a minimum. Keep water
pitcher and cup, tissue wipes, and all items necessary for attending to
personal hygiene within the patient’s reach.
• The patient should be allocated his/her own non-critical items of
patient care equipment, e.g. stethoscope, thermometer and
sphygmomanometers. Any item of patient care equipment that is
required for other patients should be thoroughly cleaned and disinfected
prior to use.
• Set up a trolley outside the door to hold personal protective equipment.
A checklist may be useful to ensure all equipment is available (see
Annex 4).
• Place appropriate container with a lid outside the door for equipment
that requires disinfection and sterilization. Once equipment has been
appropriately cleaned it can be sent to the sterilizing service department.
• Keep adequate equipment required for cleaning and disinfection inside
the patient’s room.

58
For more information on isolation rooms see the CDC Guidelines for
Isolation Precautions in Hospitals; http://www.cdc.gov/ncidod/hip/isolat/
isolat.htm. (See Annex 5 for an example diagram of an appropriate isolation
room for SARS.)
Cleaning the room
Scrupulous daily cleaning of the isolation unit is essential to prevent cross-
infection.
Entering the room
• Collect all equipment needed.
• Sign the log book.
• Wear personal protective equipment.
• Enter the room and shut the door.
Attending the patient
• Give careful instructions and explanations to patient and visitors so
that they comply fully with the precautions.
• Give the patient the same kind of respect that is given to other patients.
Be courteous and accepting. Do not
convey any feelings of disgust or fear
about the infection.
• Teach the visitors and the patient how
to observe safe and correct procedures
in order to prevent spread of infection.
(see Annex 6, Infection control advice
to contacts of a suspected or probable
SARS case)
• If the patient is a child, isolate the
family caregiver in the same unit.
Catering
• Serve food on disposable crockery to be eaten with disposable cutlery
(if available).
• Non-disposable crockery and cutlery should be washed using hot water
(700
C) and detergent, rinsed and dried.

59
• Where possible, eating utensils should be cleaned in a dishwasher using
a hot water cycle (reaching at least 700
C).
Excreta
If there is no bedpan flusher/disinfector available in the isolation area, bedpans
and urinals should be bagged in the isolation room, taken and emptied
immediately and then washed in a bedpan washer/ hot boiling water, dried
and returned immediately to the patient’s room.
If sewage treatment systems are not available secretions and excretions
should be disinfected prior to their discharge into sanitary sewage.
Reusable bedpans, urinals and sputum mugs should be cleaned with a
neutral detergent then disinfected with an appropriate disinfectant, for
example 5% sodium hypochlorite solution. Wash and dry to reuse.
Dressings
• Discard waste material and dirty dressings in clinical (infectious) waste
bag.
• Keep used lotions/medications in the room and do not use for non-
SARS patients.
Leaving the room
• Remove personal protective equipment avoiding contact with blood,
body fluids, secretions, excretions and other contaminants. See details
in Annex 2 under section “removing personal protective equipment
when leaving the patient care area”.
• Use alcohol-based hand-rub or wash hands.
• Leave the room.
• Once outside room use alcohol hand-rub again or wash hands. Wash
hands using plain soap, antimicrobial agent or waterless antiseptic
agent such as an alcohol-based hand gel.
Discharging the patient
• Inform the infection control team when the patient is due to be
discharged. (See Annex 7, Infection control checklist: discharge of a
patient with suspect or probable SARS).

60
• Educate the patient and family on appropriate precautions to be taken
at home.
• A checklist may be used to ensure patients and their family/contacts
have been advised of all the appropriate infection control precautions
to be taken (see Annex 7).
• Carry out appropriate cleaning and disinfection of the room.
Care of the deceased14
Health care workers must:
• Follow all infection control precautions when caring for the deceased
SARS patient.
• Wear full personal protective equipment.
• Ensure that the body is fully sealed in an impermeable body bag prior
to transfer to the mortuary.
• Ensure that there is no leaking of body fluids and the outside bag is
clean.
• Recognize and consider cultural sensitivity in situations where a patient
dies and has SARS.
• If the family of the patient wishes to view the body, allow them to do
so as long as they wear personal protective equipment. This should
happen before the body is transferred to the mortuary.
• Transfer of the body to the mortuary should occur as soon as possible
after death.
Post-mortem
A post-mortem examination of someone who had or probably had SARS is
classified as a very high-risk procedure.15
Therefore, a post-mortem should
be avoided if at all possible.
Minimizing the risk from an infected cadaver
If, however, a post-mortem is required, full infection control precautions for
SARS should be observed when undertaking the post-mortem.
Prevent the production of aerosols by: 16
• Avoiding the use of power saws,
• conducting procedures under water if there is a chance of aerozolation,

61
• avoiding splashing when removing any organs,
• using clear plastic bags over the cadavers’ head while eviscerating the
brain – some facilities are equipped with special tents for this procedure.
Use the minimal amount of equipment in the autopsy.
Avoid using scalpels and scissors with pointed ends.
Never pass instruments and equipment by hand – always use a tray.
If possible use disposable instruments and equipment.
Keep the number of staff present to a minimum.
Use of a circulator (assistant)16
The pathologist and the anatomical pathology technician will have
contacted with the patient and therefore may be classified as “dirty or
contaminated”. The use of a “clean” person as a circulator will help to
minimize contact with potentially infected or contaminated tissues, fluids
and surfaces.
The circulator will be able to:
• Label specimen containers without contamination on the outside of
the container,
• Complete any paperwork and record spontaneous notes required by
the pathologist,
• Record organ weight and other details,
• Act as a liaison between the pathologist and any clinicians that may
be required so that there is no contact with telephones, computers,
records, etc.
Mortuary care/ funeral director’s premises17
Staff of the mortuary or funeral home must be informed that the deceased
had SARS. They must be educated as to the appropriate precautions to take
in the event there is exposure to the body.
Embalming is not recommended in the case of SARS:
• contact with the deceased SARS patient should be avoided where at all
possible,
• the patient should be buried or cremated as soon as possible to reduce
the risk of exposure to staff.

62
Hygienic preparation of the deceased (e.g. cleaning, tidying of hair,
trimming of nails, shaving) should also be discouraged.
Infections with multidrug resistant
organisms
The overuse and misuse of antimicrobials has resulted in the development of
antimicrobial resistance in many parts of the world.
In health care settings, the spread of resistant organisms is facilitated
when handwashing, infection control precautions, and equipment cleaning
are suboptimal.
The strategies for control of antimicrobial resistance thus consists of:
• Appropriate use of antimicrobials,
• Strengthening of basic infection control measures.
Appropriate antimicrobial use
Each health care facility should have an antimicrobial use programme. This
policy must be implemented through the Infection Control Committee or an
Antimicrobial Use Committee (see below).
• Antibiotic use must be justifiable on the basis of the clinical diagnosis
and known or expected infecting micro-organisms,
• appropriate specimens for bacteriological examination must be obtained
before initiating antibiotic treatment, in order to confirm the treatment
is appropriate,
• the selection of an antibiotic must be based not only on the nature of
the disease and that of the pathogenic agent(s), but on the sensitivity
patterns, patient tolerance, and cost,
• the physician should receive timely, relevant information of the
prevalence of resistance in the facility,
• an agent with as narrow a spectrum as possible should be used,
• antibiotic combinations should be avoided, if possible,
• selected antibiotics may be restricted in use,
• the correct dose must be used (low dosages may be ineffective for
treating infections, and encourage the development of resistant strains,

63
while excessive doses may have adverse effects, and may not prevent
resistance).
Antimicrobial use committee
This committee recommends antibiotics for the formulary, establishes
prescribing policies, reviews and approves practice guidelines, audits antibiotic
use, oversees education, and interacts with pharmaceutical representatives.
The committee may be a subcommittee of the Hospital Infection Control
Committee (HICC) or an independent committee working in liaison with
HICC.
The most important antibiotic-resistant bacteria are: methicillin-resistant
Staphylococcus aureus (MRSA), vancomycin resistant Enterococcus faecium and
Enterococcus faecalis (VRE); multiresistant gram-negative bacteria; and
multidrug-resistant tuberculosis (MDR-TB).
Organisms with acquired resistance to multiple antibiotics are common
in many hospitals. Other organisms may be important in some health care
facilities, but this document will focus on MRSA, VRE and MDR-TB.
Control of endemic antibiotic resistance
• Ensure appropriate use of antibiotics (optimal choice, dosage and
duration of antimicrobial therapy and chemoprophylaxis based on
defined hospital antibiotic policy, monitoring and antibiotic resistance,
and up-to-date antimicrobial guidelines).
• Institute protocols (guidelines) for intensive infection control procedures
and provide adequate facilities and resources, especially for
handwashing, infection control precautions (e.g. isolation), and
environmental control measures.
• Improve antimicrobial prescribing practices through educational and
administrative methods.
• Limit use of topical antibiotics.
Methicillin-resistant Staphylococcus aureus (MRSA)
Epidemic strains of MRSA have tremendous potential for nosocomial
transmission. MRSA strains are often resistant to several antibiotics and are
often sensitive only to vancomycin and one or two other antibiotics. Once

64
introduced into a hospital they spread rapidly, since transmission is usually
through the hands of health care staff.
The following precautions are required for the prevention of spread of
epidemic MRSA:
• Minimize ward transfers of staff and patients,
• ensure early detection of cases, especially if they are admitted from
another hospital. Screening of high risk patients will ensure early
detection and appropriate precautions can be implemented,
• isolate infected or colonized patients in a single room, isolation unit or
cohorting in a larger ward,
• treat patients with MRSA pneumonias with airborne precautions in
place,
• reinforce handwashing by staff after contact with infected or colonized
patients; consider using an antiseptic handwashing agent or alcohol
hand-rub or handgel,
• wear gloves when attending to the patient or when handling MRSA-
contaminated materials,
• wear a gown or apron when attending to the patient or when handling
contaminated materials,
• develop protocols or guidelines for management of patients and staff
during an outbreak,
• ensure that operating surgeons should not perform surgeries until
declared negative for carriage.
Vancomycin-resistant enterococcus (VRE)
Enterococci may be cultured from surgical wound infections, liver and intra-
abdominal abscesses, and foot ulcers in diabetic patients.
E. faecium and E. faecalis are commensal organisms in the gastrointestinal
tracts of healthy individuals.
Transmission
The major route of transmission of VRE within the health care facility is the
hands of HCWs following contact with patients with VRE or their immediate
environment. Usually this is associated with inadequate handwashing.

65
Susceptibility
VRE readily colonizes the bowel without causing symptoms of infection.
VRE does not cause diarrhoea.
Patients who are at an increased risk for VRE colonization or infection
are, for example:
• Critically ill patients (Intensive Care Unit patients),
• immunocompromised patients (patients on chemotherapy or transplant
patients),
• patients who have had intra-abdominal or cardiothoracic procedures,
• patients who have central venous catheters,
• patients who have had a prolonged hospital stay, and
• patients who have had recent broad-spectrum antibiotic therapy, or
who have received oral or intravenous vancomycin.
It may be necessary to screen for VRE in the health care facility, especially
in high-risk patients as above.
Infection control measures for VRE
Standard precautions with additional contact precautions should be applied.
Contact precautions (See chapter 3 and Annex 2)
• It is essential that all staff, visitors or any other person entering the
patient’s room strictly follow standard and contact precautions.
• Daily environmental cleaning is essential.
• Patient must have his/her own patient care items.
Any item must be disinfected after it is removed from the patient’s
room prior to being sent to another area in the hospital or being used
on another patient.
Multidrug-resistant tuberculosis (MDR-TB)
Tuberculosis (TB) is caused by infection with Mycobacterium tuberculosis. It
affects one third of the world’s population.18
Of particular concern is the
rise in drug-resistant TB and multidrug-resistant TB (MDR-TB). Multidrug-

66
resistant TB is resistant to any combination of anti-TB drugs that includes
Isoniazid and Rifampicin (the two most effective anti-TB drugs). 18
Susceptibility
MDR-TB arises in areas where TB control is poor, such as developing countries.
Occurrence
• The incidence of MDR-TB in developing countries is high and in some
countries it threatens the success of TB control programme.
• Several geographical areas have been identified by WHO as having a
prevalence of MDR-TB greater than 3% of newly diagnosed cases.
Transmission
• TB is usually transmitted by exposure to airborne droplet nuclei
produced by people with pulmonary or laryngeal disease, during
expiratory efforts such as coughing and sneezing.
• Prolonged, close contact with such patients increases the risk of
transmission.
Infection control measures for MDR-TB
• Rapid detection,
• immediate implementation of infection control precautions for all
suspect or proven cases,
• diagnosis and treatment of TB,
• transport of patient – patient should wear a surgical mask,
• appropriate infection control precautions include standard precautions
plus additional precautions (airborne precautions).
Standard and airborne precautions.
See chapter 3.
Health care workers
• HCWs working in areas where there are patients with TB, such as
chest clinics, bronchoscopy units, radiology units, and TB laboratories
are at greater risk of occupational exposure to TB.

67
• Such HCWs should have yearly Mantoux tests. If they test positive
they should have an X-ray and clinical review.
Infections with viral haemorrhagic fevers
Viral haemorrhagic fevers (VHF) are severe acute viral illnesses that will
present with a sudden onset of fever, lethargy, weakness and headache. This
may be followed by pharyngitis, diarrhoea and vomiting and a
maculopapular rash.11
Haemorrhagic diathesis often occurs along with liver
damage, renal failure, central nervous system involvement and terminal
shock with multiorgan failure.11
Viral haemorrhagic fevers include; Ebola-Marburg viral diseases, African
haemorrhagic fever, Marburg virus disease, Ebola virus, haemorrhagic fever.
The case fatality rate of Marburg virus infection (reported primary cases )
is approximately 25% whereas case-fatality of Ebola infections in Africa range
from 50% - 90%.11
Mode of transmission11
Human-to-human transmission by:
• Direct contact with infected blood,
• secretions,
• organs,
• semen.
Risk of transmission increases as the illness becomes worse, highest level
of transmission being in the late stages of the illness when the patient is
vomiting.
Infection control precautions11,19
Strict infection control precautions MUST be followed at all times when
caring for all patients with VHF. These include:
(a) Standard Precautions (see section 3),
(b) Isolation Precautions for VHF. These guidelines only give a brief
overview:
• Isolate the patient,

68
• wear personal protective equipment (at all times when in contact
with patient or environment),
• clean and disinfect spills, waste, and reusable equipment safely,
• clean and disinfect soiled linen and laundry safely,
• use safe disposal methods for non-reusable supplies and clinical
waste,
• provide information about the risk of VHF transmission to health
care workers,
• reinforce the use of VHF isolation precautions with all health care
workers,
• provide information to families and the community about prevention
of VHFs and care of patients.
For more information see Infection Control for Viral Haemorrhagic
Fevers in the African Health Care Setting.19
http://www.cdc.gov/ncidod/
dvrd/spb/mnpages/vhfmanual.htm

References
69
References
1. Bennett JV and Brachman PS. Hospital infection. 4th
ed. Philadelphia,
Lippincott Williams and Wilkins, 1997.
2. World Health Organization. Prevention of hospital acquired infections-A
practical guide. 2nd
ed. Geneva: WHO, 2002. Document no. WHO/CDS/
EPH/2002.12. Electronic access: http://whqlibdoc.who.int/hq/2002/
WHO_CDS_CSR_EPH_2002.12.pdf
3. Communicable Diseases Network Australia. Infection control guidelines
for the prevention of transmission of infectious diseases in the health care
setting. 2nd
ed. Canberra, Department of Health and Aging,
Commonwealth of Australia, 2002.
4. Health Canada, Laboratory Centre for Disease Control. Infection Control
Guidelines. Routine practices and additional precautions for preventing
the transmission of infection in health care. Canada Communicable
Disease Report. 1999 Jul; 25 (Supplement 4): 1-155. Electronic access:
http://www.hc-sc.gc.ca/hpb/lcdc/publicat/ccdr/99pdf/cdr25s4e.pdf
5. Garner JS. Guideline for isolation precautions in hospitals. The Hospital
Infection Control Practices Advisory Committee. Infection Control &
Hospital Epidemiology. 1996 Jan; 17(1): 53-80.
6. Sehulster L, Chinn RY; CDC; HICPAC. Guidelines for environmental
infection control in health-care facilities. Recommendations of CDC
and the Healthcare Infection Control Practices Advisory Committee
(HICPAC). MMWR Recomm Rep. 2003 Jun 6; 52(RR-10): 1-42.
7 Weinstein JW, Hierholzer WJ and Garner JS. Isolation precautions in
hospitals. In: Bennett JV and Brachman PS. Hospital infection. 4th
ed.
Philadelphia, Lippincott Williams and Wilkins, 1997 : 189-199.
8 Spalding EH. Chemical disinfection of medical and surgical materials.
In: Lawrence CA and Block SS, eds. Disinfection, sterilization and
preservation. Philadelphia, Lea & Febiger, 1968: 517-531.
9 Rutala, WA. APIC guideline for selection and use of disinfectants. 1994,
1995, and 1996 APIC Guidelines Committee. Association for
Professionals in Infection Control and Epidemiology, Inc. American
Journal of Infection Control 1996 Aug: 24(4): 313-342.

70
10 Muscarella LF. Are all sterilization process alike? AORNJ 1998 May;
67(5) : 966-970, 973-976.
11 Chin J, editor. Control of communicable diseases manual. 17th
ed.
Washington DC, American Public Health Association, 2000.
12 Wenzel RP and Edmond MB. Listening to SARS: Lessons for infection
control. Annals of Internal Medicine. 2003 Oct7; 139 (7): 592-3.
13 World Health Organization. Alert, verification and public health
management of SARS in the post-outbreak period. Geneva, 14 August 2003.
Electronic access: http://www.who.int/csr/sars/postoutbreak/en
14 Claydon SM. The high risk autopsy. Recognition and protection.
American Journal of Forensic Medicine and Pathology. 1993 Sep; 14(3):
253-256.
15 Newsom SW, Rowlands C, Matthews J, Elliot CJ. Aerosols in the
mortuary. Journal of Clinical Pathology. 1983 Feb; 36(2): 127-132.
16 Healing TD, Hoffman PN and Young SE. The infection hazards of
human cadavers. Communicable Disease Report. CDR review. 1995 Apr
28; 5(5):R61-8.
17 Young SE and Healing TD. Infection in the deceased: a survey of
management. Communicable Disease Report. CDR Review. 1995 Apr 28;
5(5): R69-73.
18 World Health Organization. Guidelines for establishing DOTS-Plus pilot
projects for the management of multidrug-resistant tuberculosis (MDR-
TB). Geneva: WHO, 2000. Document no.WHO/CDS/TB/2000.279.
Electronic access: http://whqlibdoc.who.inthq2000 WHO_CDS
_TB_2000.279.pdf
19 World Health Organization and Centers for Disease Control and
Prevention. Infection control for viral haemorrhagic fevers in the African
health care setting. Geneva, WHO, 1998: pp 1-198. Document no.
WHO/EMC/ESR/98.2. Electronic access: http://www.who.int/emc-
documents/haem_fevers/whoemcesr982c.html

Further Reading
71
Further Reading
1. Boyce JM, Pittet D; Healthcare Infection Control Practices Advisory
Committee; HICPAC/SHEA/APIC/IDSA Hand Hygiene Task Force.
Guideline for Hand Hygiene in Health-Care Settings. Recommendations
of the Healthcare Infection Control Practices Advisory Committee and
the HICPAC/SHEA/APIC/IDSA Hand Hygiene Task Force. Society for
Healthcare Epidemiology of America/Association for Professionals in
Infection Control/Infectious Diseases Society of America. MMWR
Recomm Rep. 2002 Oct 25; 51(RR-16): 1-45
2. Centers for Disease Control and Prevention. Guidelines for infection
control in health care personnel, 1998. Electronic access: http://
www.cdc.gov/ncidod/hip/GUIDE/InfectControl98.pdf
3. Julia S. Garner, RN, MN, and the Hospital Infection Control Practices
Advisory Committee. Guideline for isolation precautions in hospitals.
Part II. Recommendations for isolation precautions in hospitals. 1997.
Electronic access: http://www.cdc.gov/ncidod/hip/ISOLAT/
isopart2.htm
4. Nelson KE, Williams CM, Graham NMH. Infectious disease epidemiology:
theory and practice. Maryland, Aspen Publishers, 2001.
5. Wilson, Jennie. Infection control in clinical practice. 2nd
ed. Edinburgh,
Bailliere Tindall, 2001: pp. 131-153 and 225-264.
6. World Health Organization, Regional Office for South East Asia.
Guidelines on prevention and control of hospital associated infections. New
Delhi: WHO, 2002. Document no. SEA-HLM-343.
7. World Health Organization. Regional Office for Western Pacific. Interim
guidelines for national SARS preparedness. Manila: WHO, 2003.
8. World Health Organization. Hospital Infection control guidance for severe
acute respiratory syndrome (SARS). Geneva: WHO, 2003. Electronic
access: http://www.who.int/csr/sars/infectioncontrol/en/
9. Prüss A, Giroult E and Rushbrook P, eds. Safe Management of Wastes
from Health-care Activities. Geneva, World Health Organization, 1999.
Electronic access: http://whqlibdoc.who.int/publiations/
9241545259.pdf
10. Prüss A. and Townsend WK. Teacher’s guide: management of wastes from
health-care activities. Geneva, World Health Organization, 1998.
Electronic access: http://www.who.int/water_sanitation_health/
medicalwaste/wsh9806/en/

72
Glossary
Airborne infection: The infection usually occurs by the respiratory route,
with the agent present in aerosols (infectious particles < 5mm in diameter).
Airborne precautions: These are additional to standard precautions and are
designed to reduce the transmission of diseases spread by the airborne route.
Anteroom: An anteroom for staff to put on and remove personal protective
equipment.
Clinical Waste: Also known as “infectious waste” - includes waste directly
associated with blood, body fluids secretions and excretions, and sharps.
Infectious waste is suspected to contain pathogens (bacteria, viruses, parasites,
or fungi) in sufficient concentration or quantity to cause disease in susceptible
hosts. It also includes laboratory waste that is directly associated with
specimen processing, human tissues, including instruments, material or
solutions containing free-flowing blood, and animal tissue or carcases used
for research. Sharps are items that could cause cuts or puncture wounds,
including needles, hypodermic needles, scalpel and other blades, knives,
infusion sets, saws, broken glass, and nails. Whether or not they are infected,
such items are usually considered as highly hazardous health-care waste.
Cohorting: For infection control purposes, if single rooms are not available
or there is a shortage of single rooms, patients infected or colonized with the
same organisms can be cohorted (sharing of room(s)). When cohorting is
used during an outbreak, these room(s) should be in a well-defined area that
has been designated for the purpose and is clearly segregated from other
patient care areas in the health care facility used for non-infected/colonized
patients.
Contact transmission: Micro-organisms that are transmitted by direct
contact with hands/ equipment or indirect contact between and infected or
colonized patient and a susceptible patient.
Contact precautions: These are additional to standard precautions and are
designed to reduce the risk of transmission of micro-organisms by direct or
indirect contact.
Critical site: Sterile tissue, cavity or bloodstream. Instruments or equipment
that will penetrate this site must be sterile.
Disinfection: A process of removing micro-organisms without complete
sterilization.

Glossary
73
Droplet infections: Large droplets carry the infectious agent (>5mm in
diameter).
Droplet precautions: These are additional to standard precautions and are
designed to reduce the transmission of infectious spread by the droplet route.
Health care worker: Any person working in a health care facility, for
example, medical officer, nurse, physiotherapist, cleaner, psychologist.
Health care facility: Organization that employs health care workers and
cares for patients/clients.
Health care associated infection (also known as nosocomial infection and
hospital-associated infection): An infection acquired in hospital by a patient
who was admitted for a reason other than that infection. An infection
occurring in a patient in a health care facility in whom the infection was
not present or incubating at the time of admission. This includes infections
acquired in the hospital but appearing after discharge, and also occupational
infection among staff of the facility.
High-level disinfection: For items classified as critical (entering body cavities
or mucous membranes). This will destroy all micro-organisms with the
exception of heavy contamination by bacterial spores.
Infection control committee: Provides a forum for multidisciplinary input
and cooperation and information sharing. Representation may include:
management, physicians, other health care workers clinical microbiology,
pharmacy, sterilizing service, housekeeping, training services.
Infection control team: Those health care workers involved in carrying out
the day to day infection control programme including the yearly work plan
for review by the Infection Control Committee.
Infection control programme: Incorporates all aspects of Infection control,
e.g. education, surveillance, environmental management, waste management,
outbreak investigation, standard and additional precautions, cleaning,
disinfection and sterilisation, employee health, quality management in
Infection Control.
Low-level disinfection: Disinfection for non-critical items can kill most
bacteria, some viruses and some fungi, but cannot be relied on to kill more
resistant bacteria such as M. tuberculosis or bacterial spores.
Multiple resistant organisms: Bacteria that are resistant to many antibiotics.
They are more commonly seen in health care facilities then in the wider

74
community. These resistant patterns make them more difficult to treat and
they may readily colonize patients and at times health care workers.
Negative Pressure Room: This is a term used for an isolation are which
receives many air changes per hour (ACH) (>12 ACH for new construction
as of 2001; >6 ACH for construction before 2001), and is under negative
pressure. In other words, the direction of the air flow is from the outside
adjacent space (e.g., the corridor) into the room. It is preferable that the air
in a negative pressure room is exhausted to the outside, but may be
recirculated if the air is filtered through a high-efficiency particulate air (HEPA)
filter.6
(For more information see the CDC Guidelines for Environmental
Infection Control in Health Care Facilities. MMWR, June 6, 2003/52(RR10);1-
42. Also found at: http://www.cdc.gov/mmwr/preview/mmwrhtml/
rr5210a1.htm.)
Nosocomial infection: Also known as health-care-associated infection (see
above).
Personal protective equipment: Includes gloves, gowns, caps, masks –
(surgical and N95), and overshoes. These items are used to protect the health
care worker from splashes of blood, body fluids, excretions and excretions
or from droplets or aerosolization of organisms from the respiratory tract.
It is the responsibility of the health care worker to put on the appropriate
personal protective equipment in any situation that is likely to lead to
exposure of blood, body fluids, excretions and secretions.
Reprocessing: The steps that are taken to make an instrument or equipment
that has been used (contaminated) ready for reuse again.
Standard precautions: These are applied for all patients at all times regardless
of their known or presumed infectious status.
Sterility Assurance Level: The acceptable level of sterility is one in a million
or 10-6
. This means that of a million products being sterilised by the same
method you may statistically expect one of them to be unsterile.3
Sterilization: The destruction of all micro-organisms. This is defined as a
decrease in microbial load. Sterilization can be either conducted by physical
or chemical means.
Waste management system: All the activities, administrative and
operational, involved in the production, handling, treatment, conditioning,
storage, transportation and disposal of waste generated by health-care
establishments.

Acronyms
75
Acronyms
APIC Association for Professionals in Infection Control and
Epidemiology
BSL Biosafety Laboratory
CDC Centres for Disease Control and Prevention (Atlanta, USA)
CJD creutzfeldt-jacob disease
ELISA enzyme linked immunosorbent assay
HAI Hospital Acquired Infection or Hospital Associated
Infection
HBV hepatitis B virus
HCV hepatitis C virus
HEPA High Efficiency Particulate Air (filters)
HICC Hospital Infection Control Committee
HIV human immunodeficiency virus
ICP Infection Control Practitioner
ICU Intensive Care Unit
IFA immuno fluorescent assay
IV Intravenous
PCR polymerase chain reaction
MDR-TB multi-drug resistant tuberculosis
MRSA methicillin resistant staphylococcus aureus
PPE Personal Protective Equipment
SARS severe acute respiratory syndrome
SARS Co-V SARS coronavirus
SEARO South-East Asia Regional Office (of WHO)
SSD Sterilizing Service Department
VHF viral haemorrhagic fever
VRE Vancomycin Resistant Enterococcus
WHO World Health Organization
WPRO Western Pacific Regional Office (of WHO)

76
Annex 1
Hand Washing
Appropriate hand washing can minimize micro-organisms acquired on the
hands by contact with body fluids and contaminated surfaces. Hand washing
breaks the chain of infection transmission and reduces person-to-person
transmission.
All health care personnel and family
caregivers of patients must practise
effective hand washing. Patients and
primary care givers need to be instructed
in proper techniques and situations for
hand washing.
Compliance with hand washing is,
however, frequently sub-optimal.
Reasons for this include: lack of
appropriate equipment; low staff to
patient ratios; allergies to hand washing products; insufficient knowledge
among staff about risks and procedures; the time required, and casual
attitudes among staff towards bio-safety.
Purpose
Hand washing helps to remove micro-organisms that might cause disease.
• Washing with soap and water kills many transient micro-organisms
and allows them to be mechanically removed by rinsing.
• Washing with antimicrobial products kills or inhibits the growth of
micro-organisms in deep layers of the skin
Types of hand washing
Hand washing
Hand washing is usually limited to hands and wrists; the hands are washed
for a minimum of 10 – 15 seconds with soap (plain or antimicrobial) and
water.
Hand washing is the
simplest and most cost-
effective way of
preventing the
transmission of infection
and thus reducing the
incidence of health-care-
associated infections.

Hand Washing
77
Hand antisepsis/decontamination
Hand antisepsis removes or destroys transient micro-organisms and confers
a prolonged effect. It may be carried out in one of the following two ways:
Wash hands and forearms with antimicrobial soap and water, for 15-30
seconds (following manufacturer’s instructions).
Decontaminate hands with a waterless, alcohol-based hand gel or hand
rub for 15-30 seconds. This is appropriate for hands that are not soiled with
protein matter or fat.
Immersion of hands in bowls of antiseptics is not recommended.
Surgical hand antisepsis
Surgical hand antisepsis removes or destroys transient micro-organisms and
confers a prolonged effect. The hands and forearms are washed thoroughly
with an antiseptic soap for a minimum of 2-3 minutes. The hands are dried
using a sterile towel.
Surgical hand antisepsis is required before performing invasive procedures.
Facilities and materials required for hand
washing
Running water
Access to clean water is essential. It is preferable to have running water:
large washbasins with hand-free controls, which require little maintenance
and have antisplash devices.
When no running water is available use either a bucket with a tap, which
can be turned on and off, a bucket and pitcher, or 60%-90 % alcohol hand
rub.
Materials used for hand washing/hand antisepsis
Soap: Plain or antimicrobial soap depending on the procedure.
Plain soap: Used for routine hand washing, available in bar, powder or
liquid form.

78
Antimicrobial soap: Used for hand washing as well as hand antisepsis.
• If bar soaps are used, use small bars and soap racks, which drain.
• Do not allow bar soap to sit in a pool of water as it encourages the
growth of some micro-organisms such as pseudomonas.
• Clean dispensers of liquid soap thoroughly every day.
• When liquid soap containers are empty they must be discarded, not
refilled with soap solution.
Specific antiseptics: recommended for hand antisepsis:
• 2%-4% chlorhexidine,
• 5%-7.5% povidone iodine,
• 1% triclosan, or
• 70% alcoholic hand rubs.
Waterless, alcohol-based hand rubs:
with antiseptic and emollient gel and
alcohol swabs, which can be applied to
clean hands.
Dispensers should be placed outside
each patient room.
Facilities for drying hands
Disposable towels, reusable single use towels or roller towels, which are
suitably maintained, should be available.
If there is no clean dry towel, it is best to air-dry hands
Equipment and products are not equally accessible in all countries, or
health care facilities. Flexibility in
products and procedures, and sensitivity
to local needs will improve compliance.
In all cases, the best procedure possible
should be instituted.
Alcohol hand-rubs are
appropriate for rapid hand
decontamination between
patient contacts. They are
not a substitute for hand
washing if hands are
soiled.
Common towels must not
be used as they facilitate
transmission of infection.

Hand Washing
79
Steps in hand washing
Preparing for hand washing:
• Remove jewellery (rings, bracelets) and watches before washing hands,
• ensure that the nails are clipped short (do not wear artificial nails),
• roll the sleeves up to the elbow.
Wet the hands and wrists, keeping hands and wrists lower than the elbows
(permits the water to flow to the fingertips, avoiding arm contamination).
Apply soap (plain or antimicrobial) and lather thoroughly.
Use firm, circular motions to wash the hands and arms up to the wrists,
covering all areas including palms, back of the hands, fingers, between fingers
and lateral side of fifth finger, knuckles, and wrists. Rub for minimum of
10-15 seconds.
Repeat the process if the hands are very soiled.
Clean under the fingernails.
Rinse hands thoroughly, keeping the hands lower than the forearms.
If running water is not available, use a bucket and pitcher.
Do no dip your hands into a bowl to rinse, as this re contaminates them.
Collect used water in a basin and discard in a sink, drain or toilet.
Dry hands thoroughly with disposable paper towel or napkins, clean dry
towel, or air-dry them.
Discard the towel if used, in an appropriate container without touching
the bin lids with hand.
Use a paper towel, clean towel or your elbow/foot to turn off the faucet
to prevent recontamination.
A general procedure for hand washing is given in figure 3.
Using antiseptics, hand rubs, gels or
alcohol swabs for hand antisepsis
Apply the product to the palm of one hand. The volume needed to apply
varies by product.

80
Rub hands together, covering all surfaces of hands and fingers, until hands
are dry.
Do not rinse.
Note: When there is visible soiling of hands, they should first be washed
with soap and water before using waterless hand rubs, gels or alcohol swabs.
If soap and water are unavailable, hands should first be cleansed with
detergent-containing towellettes, before using the alcohol-based hand rub,
gel or swab.
Source: World Health Organization. Regional Office for Western Pacific. Interim
guidelines for national SARS preparedness. Manila: WHO, 2003, page 45.
Figure 3. Hand washing procedures
Procedure 1
Wet hands and wrists.
Apply soap.
Procedure 2
Right palm over left,
left over right.
Procedure 3
Palm to palm,
fingers interlaced
Procedure 4
Back fingers to opposing
fingers interlocked.
Procedure 5
Rotational rubbing of right
thumb clasped in left palm
and vice versa.
Procedure 6
Rotational rubbing backwards
and forwards with tops of
fingers and thumb of right
hand in left and vice versa
Note: Repeat procedures 1-6 until the hands are clean. Rinse hands and pat dry.

Personal Protective Equipment
81
Annex 2
If full personal protective equipment needs
to be worn before entering the patient
care area
There has been much debate about the order for putting on and taking off
personal protective equipment. The order for putting on personal protective
equipment is not important, however, for practicality, the following sequence
is given as an example:
• Wash hands.
• Wear scrub suit or old set of thin clothes before entering the designated
changing room or area.
• Wear boots /or shoe covers with trousers tucked inside.
• Wash hands.
• Wear cap.
• Wear the mask.
• Wear the gown.
• Wear an impermeable apron if splashes of blood or body fluids are
expected.
• Wear protective eye wear/ goggles.
• Wash hands and dry them.
• Wear gloves with gown sleeve cuff tucked into glove.
Removing personal protective equipment
when leaving the patient care area
The order in which personal protective equipment is removed is not as
important as the principle behind choosing such an order. The key principle
is that when removing personal protective equipment the wearer should
avoid contact with blood, body fluids, secretions, excretions and other

82
contaminants. When hands become contaminated they should be washed
or decontaminated with 70% alcohol solution.
The following is an example of how to remove personal protective
equipment:
• Using gloved hands, untie the gown string if tied in front and remove
shoe covers.
• Remove gloves (fingers under cuff of second glove to avoid contact
between skin and outside of gloves) and discard in an appropriate
manner.
• Wash hands.
• Remove gown and apron, without contaminating clothing underneath.
Touch only inside of gown and apron while removing. Place in
appropriate disposal bag.
• Remove goggles, mask, and cap and place in an appropriate container.
Dispose according to the health care facility protocol. Remove boots (if
worn) and place in appropriate container.
• Wash hands up to wrists thoroughly with soap and water, dry and
decontaminate hands using 70% alcoholic hand-rub before leaving
facility.
Use of full personal protective equipment
Full Personal Protective Equipment
Hair cover (Cap)
Eye wear (goggles)
Mask
Gown
Apron
Gloves
Shoe covers

83
Boots/shoe covers
Boots/shoe covers are used to protect the wearer from splashes of blood,
body fluids, secretions and excretions.
Waterproof boots should be worn for heavily contaminated, wet flooring
and floor cleaning.
Selecting boots/shoe covers
Shoe covers should be disposable and waterproof.
Waterproof boots should be washable.
Wearing boots/shoe covers
Wear waterproof boots if needed,
or
wear shoe covers over your personal shoes so as to cover your shoes
adequately.
Removing boots/ shoe covers
Remove shoe covers first with gloved hands and discard.
Remove boots last, before leaving the room and disinfect.
Wash hands thoroughly.
Caps
Caps that completely cover the hair are used when splashes of blood and
body fluids are expected. They should protect the hair from aerosols that
may otherwise lodge on the hair and be transferred to other parts of the
health care worker such as face or clothing by the hands or onto inanimate
objects.
Selecting cap
Use a disposable, waterproof cap of an appropriate size which completely
covers the hair.

84
Wearing cap
Place or tie cap over the head so as to cover hair completely.
Removing cap
Remove by holding inside of the cap lifting it straight off head and folding
inside out.
Discard in proper container.
Wash hands immediately.
Masks
A surgical mask protects health care providers from inhaling respiratory
pathogens transmitted by the droplet route. It prevents the spread of infectious
diseases such as varicella (chickenpox) and meningococcal diseases
(meningococcal meningitis).
An N95 mask protects health care providers from inhaling respiratory
pathogens that are transmitted via the airborne route. This helps to prevent
the spread of infectious diseases such as TB, MDR-TB.
In order to prevent the spread of infection, the appropriate mask should
be worn by health care providers and visitors when attending to a patient
suffering from a communicable disease that is spread via the airborne or
droplet route.
The patient with a communicable disease spread via the droplet or airborne
route should wear a surgical mask when being transferred to other
departments or hospitals.
Disposable masks are for single use only and should be discarded after 4-
6 hours use. They should not be stored in bags and re-used, shared or hung
around neck, etc. If a mask is splashed wet, it should be changed using clean
gloves and strict hand washing.

85
Selecting a mask
A surgical mask should be worn in circumstances where there are likely to
be splashes of blood, body fluids, secretions and excretions or when the
patient has a communicable disease that is spread via the droplet route.
An N95 respirator mask needs to be chosen for those circumstances when
a patient has a communicable disease that is spread via the airborne route.
A mask with a higher level of filtration may be required when dealing
with highly transmissible diseases such as viral haemorrhagic fever.
Examples of different types of N95 masks
Type of mask When to wear Comments
N95 or P2 Open/active
pulmonary TB,
pneumonic plague,
SARS
Ideally recommended; but
single-use, cost and
continuous availability may
restrict the use. In such
situations, standard surgical
masks may be used
N100 or P3 During invasive
procedures, collection
of respiratory
secretions,
laboratory work and
work in an
environment where
organisms in
concentrated form
may be encountered
Ideally recommended; but the
fact that filters need to be kept
continuously available and
can be used only once, may
mean that cost considerations
restrict their use. In such
situations, standard surgical
masks may be used.
Standard surgical
splash proof masks
(not gauze mask)
Mainly when dealing
with droplet
infections; use for
airborne infections
when N95 masks are
not available
Change mask when wet,
soiled or contaminated.
Do not reuse
Discard according to health
care facility protocol

86
For more information about respiratory masks see: http://www.cdc.gov/
niosh/npptl/respirators/respsars.html
Wearing the mask
Wash hands and dry.
Remove the clean mask from the container with clean hands.
Ensure the mask is fitted properly. Each N95 mask/respirator is different
and must be appropriately fitted to each health care worker– called a “fit
test”. Health care workers must ensure they know how to properly fit a
respirator according to the manufacturers’ instructions.
If glasses are worn, fit the upper edge of the mask under the glasses. This
will help to prevent them from clouding over. A secure fit will prevent both
the escape and the inhalation of micro-organisms around the edges of the
mask and fogging of the eyeglasses.
Precautions
Avoid talking, sneezing, or coughing if possible.
Masks cannot be worn with beards/unshaven faces.
The mask should completely seal the face at all times to ensure
effective filtering of micro-organisms

87
Removing the mask
Wash hands and remove mask - handle only the strings.
Discard in an appropriate bag/container and seal the bag.
Wash hands.
Gown
Gowns made of impervious material are worn to protect the wearer’s
clothing/uniform from possible contamination with micro-organisms and
exposure to blood, body fluids secretions and excretions.
The gown should be used only once for one patient and discarded or sent
for laundering. Health care workers should remove gowns before leaving
the unit.
Selecting a gown
Gowns should be clean and non-sterile. The gown should be impervious
and water repellent. It should be long enough to cover the clothing of the
wearer and should have long sleeves and high neck. Disposable gowns are
preferable. If they are not available, cotton reusable gowns can be used with
a plastic apron underneath.
Wearing the gown
Wash hands, and dry.
Hold the gown at the neck on the inside permitting to unfold.
Slide hands and arms down the sleeves.
Fasten the ties at the neck.
Overlap the gown at the back as much as possible and secure the
waistband. Request assistance to fasten the waist ties.

88
Removing the gown
Remove the gown after removing gloves.
Untie the waist-band with a gloved hand if it is tied in front before
removing the gloves.
Remove gloves and wash hands.
Untie the neck-ties (be sure not to touch outside of the gown).
Slide the gown down the arms and over the hands by holding in inside
of the sleeves.
Hold the gown with both the hands (inside the shoulders) at the shoulder
seams.
Turn the gown inside out (contaminated side in). The hands are then
brought together and the gown is rolled and discarded in the container
provided.
Discard appropriately
If reusable - discard if visibly
contaminated. If there is shortage of
gowns they may be reused during one
shift for the same patient. Hang gown
with outside facing in when not in use.
Discard at the end of each shift.
Wash hands thoroughly before
touching anything else.
Apron
An apron protects the wearer and the uniform from contact with the
contaminated body fluids. Plastic aprons are used over the gown when caring
for patients where possible splashes with blood and body substances may
occur.
Need not be used if the gown is of impermeable material.
Selecting the apron
Select water repellent, plastic aprons, which are disposable
Remove a soiled gown as
promptly as possible and
wash hands immediately
to avoid transfer of micro-
organisms to other
patients or environments.

89
If disposable ones are not available then reusable plastic aprons can be
used.
Size: long enough to protect the uniform and the gown but should not
touch the ground. Should cover the front and sides. It should open in the
back. A tie around the waist keeps the apron in place.
Wearing the apron
Wash hands.
Ensure that the sleeves are rolled above the elbows before putting on the
apron.
Wear the apron over the uniform and tie around the waist at the back.
Removing the apron
Wash hands and dry.
Remove, touching only the inside part
of apron.
Discard, folding the outside part in.
Decontaminate or dispose according
to the health care facility guidelines.
Wash hands thoroughly before
touching anything else.
Protective eyewear/goggles
Protective eyewear/goggles should be worn at all times during patient contact
when there is a possibility that a patient’s body fluids may splash or spray
onto the caregiver’s face/eyes (e.g. during throat, endotracheal and
tracheostomy suctioning, removal of in dwelling catheter etc). The amount
of exposure can be reduced through the use of protective eyewear. Full face
shields may also be used to protect the eyes and mouth of the health care
worker in such high-risk situations.
Ordinary spectacles do not provide adequate protection, although
caregivers may wear their own glasses with extra protection added at the
sides. Goggles that fit over glasses are available. Protective eyewear should
be changed after each shift.
The inside of the apron is
considered clean, the
outside is considered
contaminated. The neck of
the apron is considered
clean because that part is
not touched with
contaminated hands.

90
Protective eyewear should be washed and decontaminated after removal
and in between use.
Selecting protective eyewear
Goggles should be made of clear polycarbonate plastic with side and forehead
shields. These should be optically clear, antifog and distortion-free.
Goggles that fit over glasses are also available. Disposable goggles are
preferred but reusable ones can be used after cleaning and decontamination.
Wearing protective eye wear
Wear the eyewear by securing it over the bridge of the nose and also over
the mask.
Removing protective eye wear
Remove and place in appropriate container for cleaning and decontamination
prior to reuse by next person.
Examples of Goggles/Eye protection
Gloves
Use gloves when there is potential exposure to blood, body fluid, excretions
or secretions.
Change gloves between patients, between tasks and procedures on the
same patient, and when they become soiled.
Remove gloves promptly after touching contaminated items and
environmental surfaces and before moving to another patient.

91
Remove gloves before leaving the
patient’s bedside and decontaminate
hands immediately.
After glove removal and hand
washing, ensure that hands do not touch
potentially contaminated environmental
surfaces or items in the patient’s room.
Discard gloves after attending to each patient.
Selecting gloves
Use disposable gloves that are:
• Clean/non-sterile for routine care of the infectious patients;
• sterile for invasive procedures.
Use heavy-duty rubber gloves for cleaning instruments, handling soiled
linen or dealing with spills of blood and
body fluids. They can be washed and
reused.
Choose gloves that fit properly.
Check there is no puncture in gloves.
Do not use gloves if they are torn, as
punctured gloves do not provide
protection.
Wearing gloves
Wash hands and dry them.
Pick up the first glove by its cuff.
Wear the first glove. Bunch the glove up and then pull it onto the hand;
ease fingers into the glove.
Repeat for the other hand.
Removing gloves
When removing personal protective equipment, remove gloves first.
The reuse of single-use
gloves is not recommended
as they are contaminated
or do not provide adequate
protection after
reprocessing.
Clean, nonsterile,
disposable, single use
gloves are recommended
for routine care of patients
with highly transmissible
infections.

92
Grasp the outside of one glove, near the cuff, with the thumb and
forefinger of the other hand. Pull the glove off, turning it inside out while
pulling and holding it in the hand that is still gloved.
Hook the bare thumb or finger inside the remaining glove and pull it off
by turning it inside out and over the already removed glove to prevent
contamination of the ungloved hand.
Roll the two gloves together taking care not to contaminate the hands.
(See pictures below.)
Discard appropriately.
Wash hands and decontaminate with 70% alcohol hand rub/solution.

Infection Control: A Quick
Reference Guide for SARS
93
Annex 3
Infection Control: A Quick
Reference Guide for SARS
Summary list of precautions for infection
control practitioners
• Any article that is brought into the room must be cleaned or placed
into a clean bag before it is removed from the environment. People
should clean hands and remove the outside layer of clothing before
exiting the room. Equipment should be placed into a container for
cleaning and disinfecting or for removal to the sterilizing department.
• A suspect or probable SARS patient should be placed in a single room
– if possible, one with negative pressure.
• Only staff/visitors who have been educated about SARS should enter
the room.
• All staff/visitors who enter the room should sign a log book.
• All health care workers (and visitors) must wear personal protective
equipment when entering the room.
• The patient must wear a surgical face mask when in contact with
staff/visitors.
• The infection control SARS equipment trolley should remain outside
the door (see Annex 4).
• Patients should have clinical equipment (e.g. sphygmomanometer,
thermometer) dedicated to their exclusive use
• Sterile items should be disposable where possible. Reusable items should
be placed in a plastic bag and then into another plastic bag inside the
equipment collection bin on the trolley. Request the sterile service
department to collect.
• Alcohol-based hand-rub should be located in and outside the room.
• The patient’s room must be cleaned each day – including all horizontal
surfaces.

94
• Cleaning equipment must be cleaned after each use. Mop heads should
be sent to the laundry for proper laundering in hot water.
• Pathology specimens must be taken directly to the laboratory. Request
form must indicate “suspected or probable SARS”.
• Used linen should be placed in a linen bag inside the room and then
into another bag outside the room. Take immediately to laundry
collection area – treat as per normal soiled/contaminated linen.
• All waste should be discarded into clinical waste bag inside the room.
When waste is to be collected for disposal, place in another bag outside
the room and then treat as “normal” clinical/contaminated/infectious
waste.
• A telephone should be set up in the patient’s room

Suggested Checklist for
SARS Trolley/Table
95
Annex 4
Suggested Checklist for
SARS Trolley/Table
Items should be kept on this trolley at all times so that personal protective
equipment is always available for staff.
Equipment Stock present
Face shield/eye protection goggles
Single use gloves for clinical use (sizes: small, medium, large)
Gloves (reusable for environmental cleaning)
Theatre caps (optional for high-risk situations but should be
available
P2 (N95) masks
Surgical masks
Single-use long sleeved gowns
Single-use plastic aprons
Alcohol-based hand-rub or
alternative method for washing hands in clean water
Soap
Disinfectant
Clean towel
Appropriate disinfectant for environmental cleaning
Pathology equipment
Biohazard Pathology Specimen bags
FBC tube
EDTA tube
NPA tubing set or
Sterile dacron or rayon swab sticks with plastic shafts and Tube
containing Viral Transport Media with a lid
Request form
Stool specimen jar
Urine specimen jar
Large plastic bags
Appropriate waste bags
Linen bags
Collection container for used equipment

96
Annex 5
Isolation room
Example drawing of a typical SARS isolation facility.
General Principles of isolation unit
ISOLATION
WASH/TOILET
ISOLATION ROOM
Negative pressure/
(e.g. blow air out of
window with fan)
CHANGE
ROOM
GENERAL
ACCESS AREA
A
E
E
D
DA
A C
B
A. Disinfection station
B. Storage for general ward clothes, new PPE.
C. Biohazard bag for used PPE disposal.
D. Wall-mounted alcohol hand-wash dispensers.
E. Windows...external only. Keep clear of public.

Infection Control Advice to
Contacts of Suspect or Probable SARS cases
97
Annex 6
Contacts of Suspect or Probable
SARS cases
For contacts of suspect or probable SARS patients, careful hand hygiene is
urged, including hand washing with soap and water. If hands are not visibly
soiled, alcohol-based hand-rubs may be used as an alternative to hand
washing. For the safety of others, you should:
Ensure that all household members carefully follow good hand hygiene
(e.g. frequent hand washing or use of alcohol-based hand-rubs), particularly
after contact with body fluids (e.g. respiratory secretions, urine, or faeces).
Pursue normal activities but isolate yourself quickly if you develop a
fever or feel unwell, and seek medical attention.
Known exposure to a case
If you have been exposed to a case you need to monitor your health for 10
days after exposure. You should take your temperature daily (see below)
and report by phone to the infection control practitioner in your health
facility.
Infection control guidelines for household
contacts living with a case
Persons with suspect or probable SARS may have a moderate illness that can
be managed with home isolation. In this instance household members need
to ensure that infection control procedures are strictly adhered to.
People with probable SARS need to ensure they do not pass the infection
to others at home. If they have ongoing respiratory symptoms they should
sleep in separate rooms, wear surgical mask when in a room with others,
have their own eating utensils and not share any linen or towels with others.
Eating utensils, towels, and bedding can be used by others after routine

98
cleaning. Used tissues should be discarded into the toilet or a plastic bag
into the rubbish.
SARS patients with respiratory symptoms should wear surgical masks,
if tolerated. If the patient is unable to tolerate a mask, household members
should wear N95 masks when in close contact with the person.
All household members should carefully follow good hand hygiene (e.g.
frequent hand washing or use of alcohol-based hand-rubs), particularly after
contact with body fluids (e.g. respiratory secretions, urine, or faeces), and
cover their mouths and noses with a facial tissue when coughing or sneezing.
Environmental surfaces should be cleaned with warm water and detergent,
followed by wiping with a household disinfectant, e.g. diluted bleach
(following the manufacturer’s instructions).
Household members or other close contacts of SARS patients who develop
fever or respiratory symptoms should see a doctor. When possible, in advance
of the evaluation, health care providers should be informed that the individual
is a close contact of a possible SARS patient.
If they do not experience fever or respiratory symptoms, household
members or other close contacts of SARS patients need not limit their activities
outside the home. The exception to this is where the contact with the SARS
case was in a SARS-affected area.
How to record your body temperature: follow
these instructions carefully
To ensure accurate measurement of your temperature, do not take your
temperature for
30 mins after having a cold drink,
30 mins after having a hot drink,
30 mins after having a hot shower or bath,
30 mins after exercising,
30 mins after smoking, and
do not take Aspirin, Panadol or Panadeine for 4 hours prior to taking
temperature

99
Using a digital thermometer:
Press on/off button,
wait until thermometer resets and beeps,
place tip under the tongue, wait until the thermometer
beeps,
record the temperature and the time it was taken.
Using a mercury thermometer: see below
Hold the thermometer firmly by the top and shake downwards firmly.
Shake the thermometer till the mercury level falls back to the bulb
reservoir.
Place the thermometer bulb under the tongue and leave in place for 4
minutes (monitor with the second hand on a clock).
Record the temperature and the time it was taken.
Remember – contact the appropriate SARS contact person/s if your
temperature is 37.50
C and above.

100
Discharge of a patient with suspect or
probable severe acute respiratory
syndrome (SARS)
Before the patient is discharged, ensure that the following have been attended
to:
The patient Tick
1. The patient has been informed of any follow-up blood tests
required (when, where and given contact numbers)
2. The patient has been given the patient information sheet for
SARS and has been educated accordingly
3. The patient is aware that a member of the SARS team will be
making regular contact with him or her
4. The patient has been educated as to what the infection control
precautions are in the home situation. For example:
(a) Whenever he or she has contact with another person he or
she must wear a surgical mask or the contact must wear
an N95 mask
(b) The patient should remain at home for the duration
required.
5. The patient has been educated on how to take his or her
temperature twice daily
6. The patient has been given a supply of surgical masks and has
been advised where to obtain additional masks from

101
The patient’s family/contacts Tick
1. The patient's family/contacts have been given the information
sheet for contacts of a patient with SARS and educated
accordingly
2. The patient's family/contacts have been advised of the
infection control precautions for living with/having contact
with a patient with SARS (e.g. to wear the N95 mask when in
contact with the patient if the patient is not able to wear a
surgical mask, the patient should remain at home for the
duration required)
3. The patient's family/contacts have been educated on how to
wear the N95 mask.
4. The patient's family/contacts have been given a supply of N95
masks and advised where more masks can be obtained
5. The patient's family/contacts have been advised that a
member of the SARS team will be in contact with them.

Acknowledgements
103
Acknowledgements
Many members of the SARS teams in the WHO South-East Asia and Western
Pacific Regional Offices contributed to these guidelines.
The first few drafts of the document were developed and/or reviewed by:
Dr Manju Vatsa
Dr Duangvadee Sungkhobol
Dr Sudarshan Kumari
Dr Rajesh Bhatia
Dr Rob Condon
Ms Michelle Cullen
Ms Penny Clayton
Ms Glenys Harrington
Ms Peta-Anne Zimmerman
The document was further developed following a review meeting in
Manesar, Haryana, India in August 2003. The participants at that meeting
were:
Ms Karen Shaw
Dr Duangvadee Sungkhobol
Dr Rohini Kelkar
Dr Nita Munshi
Dr Manju Vatsa
Associate Professor Wilawan Senaratana
Dr Sudarshan Kumari
Dr Rajesh Bhatia
Dr Mel Velmonte
WHO gratefully acknowledges the contribution of those who helped in
developing these guidelines, as well as the many infection control experts in
countries of the South-East Asia and Western Pacific Regions who reviewed
them and made valuable suggestions. A special thank you to Ms Karen Shaw
and Dr Gerald Dziekan for their work in finalizing these guidelines, Dr Luis
Diaz and Mr Alexander Hildebrand for their advice on environmental
management and to Dr Philippe Calain for his advice regarding cleaning the
environment and reprocessing of instruments and equipment for highly
transmissible diseases in resource-poor settings.

Practical guidelines infection_control

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