1. Department of Public Health Institute of Tropical Medicine Antwerp Belgium
2. Department of Infectious Diseases Public Health Service of Amsterdam Amsterdam The Netherlands
3. Department of Social Psychology University of Amsterdam Amsterdam The Netherlands
4. Department of Internal Medicine Amsterdam UMC Amsterdam Institute for Infection and Immunity (AI&II) University of Amsterdam Amsterdam The Netherlands
5. Department of Dermatology Amsterdam UMC Amsterdam Institute for Infection and Immunity (AI&II) University of Amsterdam Amsterdam The Netherlands