1. European Program for Intervention Epidemiology Training, European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
2. Department of Infectious Disease Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
3. Department of Medical Microbiology; More and Romsdal Health trust, Molde, Norway
4. Department of Microbiology and Infectious Disease Control, University Hospital of North Norway, Tromsø, Norway
5. Norwegian Veterinary Institute, Oslo, Norway
6. Norwegian Food Safety Authority, Head Office, Ås, Norway
7. Department of Gastroenterology, University Hospital of North Norway, Tromsø, Norway
8. Laboratory of Gastroenterology and Nutrition, Institute of Clinical Medicine, University of Tromsø, Norway
9. Norwegian Food Safety Authority, District Office, Tromsø, Norway
10. Unit of Gene Technology, Akershus University Hospital, Nordbyhagen, Norway
11. Department of Food-borne Infections, Norwegian Institute of Public Health, Oslo, Norway
12. Municipality of Tromsø, Troms, Norway
13. Municipality of Sarpsborg, Østfold, Norway