1. Department of Dermatology, Ghent University, Ghent University Hospital, Ghent, Belgium
2. Department of General Internal Medicine and Infectious Diseases, Ghent University, Ghent University Hospital, Ghent, Belgium
3. Department Epidemiology of Infectious Diseases, Sciensano, Ixelles, Belgium
4. Department of Pathology, Ghent University, Ghent University Hospital, Ghent, Belgium