1. Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium.
2. Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
3. Department of Sociology, University of Antwerp, Antwerp, Belgium.
4. Department of Infectious Diseases, Research and Prevention, Public Health Service of Amsterdam, Amsterdam, The Netherlands.
5. Department of Internal Medicine, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.
6. Amsterdam Institute for Infection and Immunity (AII), Amsterdam, The Netherlands.
7. Amsterdam Public Health Research Institute (APH), Amsterdam, The Netherlands.