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Preventing campylobacteriosis depends on a thorough understanding of its epidemiology. We used case-case analysis to compare cases of Campylobacter coli infection with cases of C. jejuni infection, to generate hypotheses for infection from standardized, population-based sentinel surveillance information in England and Wales. Persons with C. coli infection were more likely to have drunk bottled water than were those with C. jejuni infection and, in general, were more likely to have eaten pâté. Important differences in exposures were identified for these two Campylobacter species. Exposures that are a risk for infection for both comparison groups might not be identified or might be underestimated by case-case analysis. Similarly, the magnitude or direction of population risk cannot be assessed accurately. Nevertheless, our findings suggest that case-control studies should be conducted at the species level.

Original publication

DOI

10.3201/eid0809.010187

Type

Journal article

Journal

Emerg Infect Dis

Publication Date

09/2002

Volume

8

Pages

937 - 942

Keywords

Adolescent, Adult, Aged, Aged, 80 and over, Bias, Campylobacter Infections, Campylobacter coli, Campylobacter jejuni, Case-Control Studies, Child, England, Female, Food Microbiology, Humans, Male, Meat Products, Middle Aged, Mineral Waters, Models, Biological, Risk Factors, Seasons, Sentinel Surveillance, Travel, Wales, Water Microbiology