1. Amsterdam Institute for Global Health and Development
2. Center for Experimental and Molecular Medicine, Division of Infectious Diseases, Academic Medical Center, University of Amsterdam
3. Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon
4. Laboratory of Microbiology, Wageningen University
5. Department of Bacteriology and Immunology, and Immunobiology, University of Helsinki, Finland
6. Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Center for Disease Control and Prevention, Atlanta, Georgia
7. PATH, Vaccine Access and Delivery, Seattle, Washington
8. Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands
9. Department of Paediatrics, University of Padova, Italy