1. Amsterdam Institute for Global Health and Development and Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
2. Center for Experimental and Molecular Medicine, Division of Infectious Diseases, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
3. Department of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
4. Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
5. RPU Immunobiology, Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
6. Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Center for Disease Control and Prevention, Atlanta, Georgia, USA
7. Department of Paediatrics, University of Padova, Padova, Italy
8. Behavioral Science Institute, Department of Developmental Psychology, Radboud University, Nijmegen, The Netherlands