1. Vaccines & Immunity Theme, Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia, Center for International Health, University Hospital, Ludwig Maximilian University of Munich,
Munich, Germany
2. Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, UK
3. Center for International Health, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
4. Vaccines & Immunity Theme, Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia
5. Division of Infectious Diseases and Tropical Medicine, Medical Centre of the University of Munich (LMU), Munich, Germany, German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
6. Health Economics and Epidemiology Research Office, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
7. Vaccines & Immunity Theme, Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine, Banjul, The Gambia, Charité Centre for Global Health, Charité Universitatsmedizin-Berlin, Berlin, Germany