1. Department of epidemiology and public health, Service of veterinary epidemiology Sciensano Brussels Belgium
2. Department of epidemiology and public health, Service of epidemiology of infectious diseases Sciensano Brussels Belgium
3. Department of human infectious diseases, Service of bacterial diseases Sciensano Brussels Belgium
4. Dierengezondheidszorg Vlaanderen Torhout Belgium
5. Federal Agency for the Safety of the Food Chain Brussels Belgium
6. UCB Brussels Belgium Brussels Belgium