University of Pittsburgh - Department of Pediatrics, University of Maryland, Baltimore (UMB) - School of Medicine, Fred Hutchinson Cancer Research Center, affiliation not provided to SSRN, Fred Hutchinson Cancer Research Center, University of California, San Diego (UCSD) - Division of Infectious Diseases and Global Public Health, University of South Florida - Morsani College of Medicine, Emory University School of Medicine and Children’s Healthcare of Atlanta - Department of Pediatrics, Ndlovu Research Centre, Harvard University - Brigham and Women’s Hospital, Baylor College of Medicine, Instituto Nacional de Infectologia Evandro Chagas, Fiocruz - Lab. De Pesquisa Clinica DST/AIDS, South African Medical Research Council, University of North Carolina (UNC) at Chapel Hill - School of Medicine, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Moderna, Inc., AstraZeneca Pharmaceuticals, Janssen Research & Development, LLC, Novavax, Inc., - Center for Vaccine Development and Global Health, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Alabama at Birmingham - Heersink School of Medicine, Harvard University - Brigham and Women’s Hospital, Government of the United States of America - Biostatistics Research Branch and - Department of Pediatrics

Centre for the AIDS Programme of Research in Africa (CAPRISA), University of KwaZulu- Natal, University of Washington, Fred Hutchinson Cancer Research Center, Johns Hopkins Bloomberg School of Public Health, Malawi, Fred Hutchinson Cancer Research Center, University of Zimbabwe, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Duke University - Department of Surgery, Fred Hutchinson Cancer Research Center, Chris Hani Baragwanath Academic Hospital, KwaZulu-Natal Research Innovation and Sequencing Platform - KRISP, University of KwaZulu-Natal, University of KwaZulu-Natal - School of Laboratory Medicine and Medical Sciences, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center, National Institutes of Health, National Institutes of Health, COVID-19 Prevention Network, University of Zimbabwe - Faculty of Medicine and Health Sciences, Baylor College of Medicine, Botswana Harvard AIDS Institute Partnership (BHP), Centre for Infectious Disease Research in Zambia, Columbia University - ICAP, Wits University - Clinical HIV Research Unit, Aurum Institute, Synexus Helderberg, University of Cape Town Lung Institute, University of the Witwatersrand - Reproductive Health and HIV Research Unit (RHRU), TASK, FAMCRU Family Clinical Research Unit, University of Cape Town (UCT), Aurum Institute, University of North Carolina (UNC) at Chapel Hill - UNC-Project Malawi, Center for Family Health Research Zambia (CFHRZ), The Aurum Institute, Aurum Institute, South African Medical Research Council, UNC Global Projects, Soweto Clinical Trials Centre, Blantyre District Council, Center for Family Health Research Zambia (CFHRZ), Wits Health Consortium - Perinatal HIV Research Unit (PHRU), Synergy Biomed Research Institute, MERC Middelburg, Kisumu Clinical Research Site, TASK, TASK, Aurum Institute, Nelson Mandela Academic Clinical Research Unit Clinical Research Site, University of the Witwatersrand - Perinatal HIV Research Unit, Joint Clinical Research Centre, University of KwaZulu-Natal, South African Medical Research Council, Soweto Clinical Trials Centre, UVRI-IAVI HIV Vaccine Program, MeCRU Clinical Research Site, Maseno University, Synexus Stanza Clinical Research Centre Clinical Research Site, University of KwaZulu-Natal, PHOENIX Pharma (Pty) Ltd, Moi University, University of Cape Town (UCT), MERC Kempton, MERC Welkom, MU-JHU Care Ltd - MUJHU Research Collaboration, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, University of Cape Town (UCT) - Desmond Tutu HIV Centre, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, South African Medical Research Council, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Qhakaza Mbokodo Research Clinic and Independent

Fred Hutchinson Cancer Research Center, Vanderbilt University - Department of Chemistry, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Washington - Department of Medicine, Fred Hutchinson Cancer Research Center - Clinical Research Division, Fred Hutchinson Cancer Research Center - Clinical Research Division and Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division

Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Duke University, Duke University - School of Medicine, Duke University - School of Medicine, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Independent, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Washington, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Washington - Department of Biostatistics, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Government of the United States of America - Vaccine Research Center, National Institutes of Health - Vaccine Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, FHI 360 (Family Health International), Via Libre CRS, University of California, Los Angeles (UCLA) - Department of Medicine, Wits Health Consortium - Perinatal HIV Research Unit (PHRU), University of Cape Town (UCT) - Department of Medicine, University of Pennsylvania, Asociacion Civil Impacta Salud y Educacion, Emory University - School of Medicine, San Miguel Clinical Research Center - Asociacion Civil Impacta Salud y Educacion, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, National Institute for Communicable Diseases of the National Health Laboratory Service, Duke University - Duke Human Vaccine Institute, University of North Carolina (UNC) at Chapel Hill - Department of Medicine, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division and Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology

Bocconi University, University of Glasgow, University of Bristol, Independent, University of Edinburgh, University of Bristol - NIHR Bristol and Western Biomedical Research Centre, University of Bristol - Centre for Surgical Research, University of Toronto - The Hospital for Sick Children - SickKids, University of Leicester, University of Toronto, National Institute for Health and Clinical Excellence (NHS), University of Toronto - Child Health Evaluative Sciences, AstraZeneca Pharmaceuticals, University of Southern Denmark, Basel University - CLEAR Methods Center, European Institute of Oncology (IEO) IRCCS - Division of Thoracic Surgery, University of Bristol - Bristol Heart Institute and Translational Biomedical Research Centre, University of Galway, Federal University of Minas Gerais (UFMG), Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Independent, University of New South Wales (UNSW), Università degli Studi di Genova, King's College London, George Washington University, Iran University of Medical Sciences - Rajaie Cardiovascular Medical and Research Center, University of Bordeaux - CHU de Bordeaux, Charité–Universitätsmedizin Berlin, Cleveland Clinic, McMaster University, Cleveland Clinic, Independent, Bispebjerg and Frederiksberg Hospitals - Section for Biostatistics and Evidence-Based Research, University of Oxford, Yale University and University of Glasgow

Fred Hutchinson Cancer Research Center - Division of Public Health Sciences, Vanderbilt University - Department of Pharmacology, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Washington - Department of Global Health, Fred Hutchinson Cancer Research Center - Clinical Research Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Washington - Department of Medicine, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Clinical Research Division and Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division