Campylobacter jejuni is a leading bacterial cause of foodborne illness, primarily from undercooked poultry, affecting an estimated 1.3 million people in the U.S. annually, with symptoms such as diarrhea starting within 2 to 5 days of exposure. The infection, known as campylobacteriosis, can be severe, particularly for high-risk groups, but most people recover without long-term consequences. Preventive measures include cooking food properly, avoiding raw dairy products, and practicing good kitchen hygiene.
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