University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, National Institute For Communicable Diseases Of South Africa - Division of Public Health Surveillance and Response, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand - Faculty of Health Sciences, University of the Witwatersrand - Reproductive Health and HIV Research Unit (RHRU), Setshaba Research Centre, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, Stellenbosch University - Family Centre for Research with Ubuntu, Soweto Clinical Trials Centre, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, Setshaba Research Centre, University of Oxford - Centre for Vaccinology and Tropical Medicine, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, Soweto Clinical Trials Centre, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of the Witwatersrand, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, Setshaba Research Centre, National Institute for Communicable Diseases of the National Health Laboratory Service, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of the Witwatersrand, Guy's and St Thomas' NHS Foundation Trust - Department of Infection, University of the Witwatersrand - Reproductive Health and HIV Research Unit (RHRU), University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand, University of Oxford - Centre for Vaccinology and Tropical Medicine, University of Oxford - Chinese Academy of Medical Science Oxford Institute (COI), University of Oxford - Oxford Vaccine Group, University of the Witwatersrand and University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit

Alvea LLC, Alvea LLC, Alvea LLC, Alvea LLC, Alvea LLC, Alvea LLC, Micron Research Ltd, Micron Research Ltd, Ubuntu Clinical Research, Ubuntu Clinical Research, Setshaba Research Centre, Setshaba Research Centre, South African Medical Research Council - Antibody Immunity Research Unit (AIRU), University of the Witwatersrand, TASK, Alvea LLC and Alvea LLC

Africa Health Research Institute, Africa Health Research Institute, University of KwaZulu-Natal - Centre for the AIDS Programme of Research in South Africa (CAPRISA), KwaZulu-Natal Research Innovation and Sequencing Platform - KRISP, National Institute for Communicable Diseases of the National Health Laboratory Service, KwaZulu-Natal Research Innovation and Sequencing Platform - KRISP, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, KwaZulu-Natal Research Innovation and Sequencing Platform - KRISP, University of Washington, KwaZulu-Natal Research Innovation and Sequencing Platform - KRISP, KwaZulu-Natal Research Innovation and Sequencing Platform - KRISP, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, University of KwaZulu-Natal - Department of Infectious Diseases, University of KwaZulu-Natal - Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of Cape Town (UCT) - South African Tuberculosis Vaccine Initiative, University of Washington, Africa Health Research Institute, affiliation not provided to SSRN, University of KwaZulu-Natal - School of Laboratory Medicine and Medical Sciences, University of the Witwatersrand, University of KwaZulu-Natal - Department of Infectious Diseases, University of KwaZulu-Natal - School of Laboratory Medicine and Medical Sciences and Africa Health Research Institute

University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Red Cross War Memorial Children’s Hospital, University of Cape Town (UCT) - Groote Schuur Hospital, University of Cape Town (UCT) - Groote Schuur Hospital, University of Cape Town (UCT) - Groote Schuur Hospital, University of Cape Town (UCT) - Groote Schuur Hospital, University of Cape Town (UCT) - Red Cross War Memorial Children’s Hospital, University of Cape Town (UCT) - Red Cross War Memorial Children’s Hospital, University of Cape Town (UCT) - Department of Paediatric Rheumatology, University of Cape Town (UCT) - Red Cross War Memorial Children’s Hospital, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, University of the Witwatersrand, University of Cape Town (UCT) - SA-MRC Unit on Child & Adolescent Health, University of Cape Town (UCT) - SA-MRC Unit on Child & Adolescent Health, University of Cape Town (UCT) - SA-MRC Unit on Child & Adolescent Health, University College London - Great Ormond Street Institute of Child Health Biomedical Research Centre, University College London - Great Ormond Street Institute of Child Health Biomedical Research Centre, University of Cape Town (UCT) - Department of Pediatrics and Child Health, University of Cape Town (UCT) - Department of Medicine, University of Cape Town (UCT) - Groote Schuur Cardiac Clinic, University of Cape Town (UCT) - Department of Paediatric Rheumatology, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Institute of Infectious Disease and Molecular Medicine and Independent

University of Paris-Saclay - Institut Pasteur, Sanofi - Shanghai, Sanofi - Pennsylvania, University of Paris-Saclay - Institut Pasteur, University of Paris-Saclay - Institut Pasteur, University of Paris-Saclay - Institut Pasteur, Institut Pasteur - Virus & Immunity Unit, National Health Laboratory Services (NHLS) - National Institute for Communicable Diseases, Sanofi - Pennsylvania, Sanofi - Pennsylvania, Sanofi - Massachusetts, Sanofi - Pennsylvania, University of the Witwatersrand, Institut Pasteur - Virus & Immunity Unit and Sanofi - Reading, UK