Johns Hopkins University - Bloomberg School of Public Health, Johns Hopkins University - Department of International Health, International Vaccine Access Center, University of Oxford - KEMRI-Coast Centre for Geographical Medicine and Research, Emory University - Rollins School of Public Health, Johns Hopkins University - Department of Epidemiology, Johns Hopkins University - Bloomberg School of Public Health, Johns Hopkins University - Bloomberg School of Public Health, University of Massachusetts Worcester - UMass Chan Medical School, Johns Hopkins University - Bloomberg School of Public Health, World Health Organization (WHO) - Department of Immunizations, Vaccines and Biologicals, Yale University - Institute for Global Health, OsloMet - Oslo Metropolitan University - Faculty of Health Sciences, University of the Witwatersrand - Department of Clinical Microbiology and Infectious Diseases, Santé Publique France, RWTH Aachen University - RWTH University Hospital Aachen, Statens Serums Institut - Infectious Disease Epidemiology & Prevention, Mie National Hospital, National Institute for Public Health and Environment, National Medicines Institute, National Institute of Public Health, London School of Hygiene & Tropical Medicine, Epiconcept, Riga Stradins University, Rey Juan Carlos University, University of Melbourne - Murdoch Children's Research Institute, University of Calgary, Institute of Public Health of Chile - National Agency for Medical Devices, Innovation and Development (ANDID), Tampere University - Faculty of Social Sciences, Health Protection Surveillance Centre (HPSC), Australian Government - Centre for Disease Control, University of Toronto, Regional Authority of Public Health - National Reference Centre for Pneumococcal and Haemophilus Diseases, London School of Hygiene & Tropical Medicine - Medical Research Council Unit: The Gambia, Government of the United Kingdom - Public Health Scotland, Public Health Agency of Sweden, Public Health England - Immunisation and Countermeasures Division, Landspitali - The National University Hospital - Department of Clinical Microbiology, National Institute of Public Health, Kaiser Permanente Northern California - Kaiser Permanente Vaccine Study Center, The University of Sydney, The University of Hong Kong - Department of Microbiology, University of Bern, University of Malawi - Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Child Health Research Foundation, Johns Hopkins University - Department of International Health, International Vaccine Access Center, Carlos III Institute of Health - CIBER de Epidemiología y Salud Pública (CIBERESP), National Institute of Public Health, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, National Public Health Organization, Athens, affiliation not provided to SSRN, Mohammed VI University of Health Sciences, KU Leuven - University Hospitals Leuven, Université Laval, Ben-Gurion University of the Negev - Faculty of Health Science, European Centre for Disease Prevention and Control, National Health Laboratory Services (NHLS) - Centre for Respiratory Diseases and Meningitis, Generalitat de Catalunya, Ministry of Health, Oman, Kenya Medical Research Institute (KEMRI), Italian National Institute of Health, Government of the United States of America - National Center for Emerging and Zoonotic Infectious Diseases, Instituto Adolfo Lutz, Kenya Medical Research Institute (KEMRI), University of Utah Health Sciences Center - Division of Pediatric Infectious Diseases, Johns Hopkins University - Department of International Health, International Vaccine Access Center, Johns Hopkins University - International Vaccine Access Center and Independent