1. European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
2. Public Health Agency of Sweden, Solna, Sweden
3. National Food Agency, Uppsala, Sweden
4. Austrian Agency for Health and Food Safety, Vienna, Austria
5. Center for Virology, Medical University of Vienna, Vienna, Austria
6. European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control, (ECDC), Stockholm, Sweden
7. Department of Communicable Disease Control and Prevention, Blekinge County, Sweden
8. Department of Communicable Disease Control and Prevention, Skåne County, Sweden
9. The Environment and Health Administration of Stockholm Municipality, Stockholm, Sweden
10. Department of Communicable Disease Control and Prevention, Östergötland County, Sweden
11. Department of Communicable Disease Control and Prevention, Kalmar County, Sweden
12. Department of Communicable Disease Control and Prevention, Gävleborg County, Sweden