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

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