1. Federal Research Institute for Health, Bacterial Zoonoses of Animals, Veterinary Bacteriology Sciensano Brussels Belgium
2. National Reference Center for Coxiella burnetii and Bartonella, Sciensano Brussels Belgium
3. Federal Research Institute for Health, Veterinary Epidemiology Sciensano Brussels Belgium
4. Federal Agency for the Safety in the Food Chain Brussels Belgium
5. Institute of Tropical Medicine Antwerp Belgium