1. Center for Infectious Diseases, Queen Astrid Military Hospital, Brussels
2. Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp
3. Center for Vaccinology, Ghent University Hospital
4. Department of Internal Medicine and Infectious Diseases, Ghent University Hospital
5. Department of Public Health, Institute of Tropical Medicine, Antwerp
6. National Reference Centre for Rabies, Sciensano, Brussels
7. Center for the Evaluation of Vaccination, University of Antwerp, Belgium