Primary reservoirs for Campylobacter Jejuni?

• A. Beef and pork
• B. Poultry, unpasteurized milk/cheese, contaminated water
• C. Fresh produce
• D. Seafood

Answer: (B)

Campylobacter jejuni is most strongly linked to birds, especially poultry, so poultry becomes the main reservoir. Birds carry the bacteria in their intestines, and contamination during slaughter and processing can spread it onto poultry products. In people, infection often comes from undercooked poultry, and cross-contamination in the kitchen is a common route. Unpasteurized milk and dairy products can harbor Campylobacter and transmit disease, and contaminated water is another classic exposure, especially in settings with fecal contamination. These routes together capture the primary sources of human infection, which is why poultry, unpasteurized milk/cheese, and contaminated water best describe the main reservoirs. Other foods like beef, pork, fresh produce, or seafood can be contaminated too, but they are not the primary reservoirs.