Campylobacter spp. are the most frequently recorded foodborne, bacterial infections in the Swiss National Notification System for Infectious Diseases (NNSID). The overall goal of the project is to get a better understanding of foodborne diseases in Switzerland with a special emphasis on campylobacteriosis. The project aim is fourfold:
- To develop a concept for investigating the epidemiology of campylobacteriosis in Switzerland
- To identify determinants of the campylobacteriosis winter peak observed in Switzerland
- To describe general morbidity patterns and how campylobacteriosis presents in the (laboratory-confirmed) patient
- To describe how physicians diagnose, treat and manage acute gastroenteritis and campylobacteriosis patients in general practice
The concept is developed based on a literature review and an analysis of campylobacteriosis notification data. Then, a prospective case control study on risk factors for campylobacteriosis over Christmas and New Year is conducted. Furthermore, the study includes a description of the perceived illness experience of campylobacteriosis patients. Cases are laboratory-confirmed campylobacteriosis patients registered in the NNSID. Controls are selected from a representative sample of the general population, drawn by the Federal Statistical Office. Finally, a qualitative assessment among primary care physicians covering all Swiss regions will be conducted to investigate their approach to manage acute gastroenteritis and campylobacteriosis patients.