1. Robert Koch Institute, Department for Infectious Disease Epidemiology, Berlin, Germany
2. European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control, (ECDC), Stockholm, Sweden
3. Postgraduate Training for Applied Epidemiology (PAE, German Field Epidemiology Training Programme), Robert Koch Institute, Berlin, Germany
4. Robert Koch Institute, Division of Bacterial Infections and National Reference Centre for Salmonella and other Bacterial Enteric Pathogens, Wernigerode, Germany
5. Federal Institute for Risk Assessment, Department of Biological Safety, Berlin, Germany
6. Federal Office of Consumer Protection and Food Safety, Berlin, Germany
7. Dutch Food and Consumer Product Safety Authority (NVWA), Utrecht, the Netherlands
8. The National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, the Netherlands