2019 n cov
- 1. 2019-nCoV Dr. D. Therese Mary.,Dch. Md(Micro) Associate Professor Department of Microbiology GKMC
- 2. Novel coronavirus (2019-nCoV) • The novel coronavirus (2019-nCoV) also known as the Wuhan coronavirus, is a contagious virus that causes respiratory infection • Has shown evidence of human-to-human transmission • First identified by authorities in Wuhan, Hubei, China, as the cause of the ongoing 2019–20 Wuhan coronavirus outbreak. • Genomic sequencing has shown that it is a positive-sense, single-stranded RNA coronavirus. • Order: Nidovirales • Family: Coronaviridae • Genus: Betacoronavirus
- 3. CORONA VIRUS :ORIGIN The novel Coronavirus is said to have originated from seafood market in China’s Wuhan where wild life was reportedly sold illegally. It is not known yet which animals are responsible though many reports suggest it to be snakes.
- 8. Safety procedures during sample collection andtransport • All specimens collected for laboratory investigations should be regarded as potentially infectious, and HCWs who collect, or transport clinical specimens should adhere rigorously to infection prevention and control guidelines and national or international regulations for the transport of dangerous goods (infectious substances) to minimize the possibility of exposure to pathogens . • Assure good communication with the laboratory and provide needed information • Be sure you have alerted the laboratory of the urgency and situation before sending the sample • Also assure that specimens are correctly labelled, and diagnostic request form enclo
- 9. REQUEST FORM • Patient information – name, date of birth, sex and residential address, unique identification number, other useful information (e.g. patient hospital number) • Surveillance identification number, name of hospital, hospital address, room number • Physician’s name and contact information, name and address for report recipient. • Date and time of sample collection, • Anatomical site and location of specimen collection, • Tests requested • Clinical symptoms and relevant patient history (including vaccination and antimicrobial therapies received, epidemiological information, risk factors).
- 10. The Specimens 1. Respiratory material* (nasopharyngeal and oropharyngeal swab in ambulatory patients and sputum (if produced) and/or endotracheal aspirate or bronchoalveolar lavage in patients with more severe respiratory disease) 2. Serum for serological testing, acute sample and convalescent sample (this is additional to respiratory materials and can support the identification of the true agent, once serologic assay is available) • *Modifiable with information on whether upper or lower respiratory material is better for coronavirus detection. • A single negative test result, particularly if this is from an upper respiratory tract specimen, does not exclude infection. • Repeat sampling and testing, lower respiratory specimen is strongly recommended in • severe or progressive disease.
- 11. Transportation andStorage of samples 1. Samples should be safely packed in triple container packing and should be transported under cold chain (4°C) to the testing laboratory with prior intimation. 2. Before dispatching the sample, disinfect the outer surface of container using 1: 100 dilution of bleach or 5% Lysol solution. 3. Sample containing vials should be kept in good quality plastic bags tied with rubber bands so that inside material if leaks should not come out of bag. The plastic bag should be kept in another container which should be sealed with adhesive tape. This carrier should be placed in another plastic bag sealed with rubber bands and placed in thermocol / vaccine carrier containing ice 4. Samples should be transported at 4°C if they arrive at the laboratory within 48 hours; the sample must be stored at – 70°C if storage is required for longer periods. 5. Proper labelling (name/age/gender/specimen ID) need to be done on specimen container and other details of sender (name/address/phone number) on the outer container by mentioning “To be tested for 2019-nCoV” . For any queries, the nodal officer from ICMR-NIV Pune (Dr Yogesh K.Gurav, Scientist E) may be contacted (Phone 020-26006290/ 26006390)