1. Department of Medical Psychology, Amsterdam UMC, University of Amsterdam , 1105 AZ Amsterdam , the Netherlands
2. Amsterdam Public Health, Amsterdam UMC, University of Amsterdam , 1105 AZ Amsterdam , the Netherlands
3. Amsterdam Institute for Infection and Immunity, Amsterdam UMC, University of Amsterdam , 1105 AZ Amsterdam , the Netherlands
4. Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center , 6500 HB Nijmegen, t he Netherlands