Universidad Europea de Madrid - Paediatrics Research Group, Instituto de Investigación 12 de Octubre (imas12) - Pediatric Infectious Diseases Unit, Stellenbosch University - Children’s Infectious Diseases Clinical Research Unit (KID-CRU), University of the Witwatersrand, University College London - Infection, Immunity and Inflammation Research & Teaching Department, Fundação Ariel Glaser contra o SIDA Pediatrico, Centro de Investigação em Saúde da Manhiça (CISM), Centre Hospitalier Universitaire Gabriel Touré, Stellenbosch University - Family Centre for Research with Ubuntu, Fundação Ariel Glaser contra o SIDA Pediatrico, University of the Witwatersrand - Perinatal HIV Research Unit, University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), Africa Health Research Institute, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), Stellenbosch University, Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, Africa Health Research Institute, Africa Health Research Institute, University of North Carolina (UNC) at Chapel Hill - National Institute of Health, University of Padua - Department of Women’s and Children’s Health, Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), Columbia University - Irving Medical Center, Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), University College London Hospitals NHS Foundation Trust - Advanced Pathogen Diagnostics Unit, Ragon Institute of MGH, MIT and Harvard, University College London Hospitals NHS Foundation Trust - Advanced Pathogen Diagnostics Unit, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), affiliation not provided to SSRN, affiliation not provided to SSRN, Stellenbosch University, Stellenbosch University, Africa Health Research Institute, Imperial College London - Department of Paedaitric Infectious Diseases, Stellenbosch University, Baylor College of Medicine, affiliation not provided to SSRN, University of Miami - Miami Center for AIDS Research, affiliation not provided to SSRN, University Hospital 12 de Octubre and Independent

Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, Instituto de Investigación 12 de Octubre (imas12) - Pediatric Infectious Diseases Unit, University of Padua, Universidad Europea de Madrid - Paediatrics Research Group, Columbia University - Irving Medical Center, Stellenbosch University - Children’s Infectious Diseases Clinical Research Unit (KID-CRU), University of the Witwatersrand, University of Padova, Fundação Ariel Glaser contra o SIDA Pediatrico, Stellenbosch University - Family Centre for Research with Ubuntu, University College London Hospitals NHS Foundation Trust - Advanced Pathogen Diagnostics Unit, University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), Centro de Investigação em Saúde da Manhiça (CISM), Centre Hospitalier Universitaire Gabriel Touré, University of Sciences, Technique and Technologies of Bamako (USTTB), Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), University Hospital 12 de Octubre, University of Padua - Department of Women’s and Children’s Health, Ragon Institute of MGH, MIT and Harvard, University of the Witwatersrand - Perinatal HIV Research Unit, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, University of Miami - Miami Center for AIDS Research, University of Miami - Miami Center for AIDS Research, Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO) and Independent

Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, University College London, London School of Hygiene & Tropical Medicine - Faculty of Epidemiology and Population Health, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, Africa Health Research Institute, London School of Hygiene & Tropical Medicine - Department of Global Health and Development, London School of Hygiene & Tropical Medicine, London School of Hygiene & Tropical Medicine, Centre for Sexual Health and HIV AIDS Research (CeSHHAR) Zimbabwe, London School of Hygiene & Tropical Medicine - Faculty of Public Health and Policy, Africa Health Research Institute and Africa Health Research Institute