Campylobacter jejuni and Campylobacter coli together account for what percentage of human Campylobacter infections?

Campylobacter jejuni and Campylobacter coli together account for what percentage of human Campylobacter infections?

• A. 70-80%
• B. 50-60%
• C. Greater than 90%
• D. Less than 50%

Answer: (C)

The main idea is that human campylobacteriosis is dominated by just two species, Campylobacter jejuni and Campylobacter coli. C. jejuni is the primary agent, while C. coli contributes a smaller, but still significant, portion. When you combine their contributions, they account for the vast majority of cases—typically more than 90%. Other Campylobacter species are responsible for only a minority of infections, which is why the total from the two major species is so high.

The main idea is that human campylobacteriosis is dominated by just two species, Campylobacter jejuni and Campylobacter coli. C. jejuni is the primary agent, while C. coli contributes a smaller, but still significant, portion. When you combine their contributions, they account for the vast majority of cases—typically more than 90%. Other Campylobacter species are responsible for only a minority of infections, which is why the total from the two major species is so high.