University of Antwerp, University of Antwerp, Hasselt University - Data Science Institute, Sciensano, Université Libre de Bruxelles (ULB) - ULB Center for Research in Immunology (U-CRI), University of Antwerp - Department of Clinical Sciences, University of Liège, University of Antwerp - Department of Clinical Sciences, Ghent University - Ghent University Hospital, Université Libre de Bruxelles (ULB), University of Tübingen - Institute of Tropical Medicine, University of Antwerp - Centre for Evaluation of Vaccination (CEV) and University of Antwerp - Vaccine and Infectious Disease Institute