University of Oxford - Oxford Vaccine Group, University of Siena - Institute of Global Health, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, Federal University of São Paulo (UNIFESP), University of Oxford - The Jenner Institute, University of Oxford - Centre for Vaccinology and Tropical Medicine, University of Oxford - Oxford Vaccine Group, University of the Witwatersrand, Stellenbosch University - Family Centre for Research with Ubuntu, Soweto Clinical Trials Centre, University of Oxford - Centre for Vaccinology and Tropical Medicine, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, University of Oxford - The Jenner Institute, University of Oxford - Centre for Vaccinology and Tropical Medicine, Liverpool School of Tropical Medicine - Department of Clinical Sciences, University of the Witwatersrand - South African Medical Research Council Vaccines and Infectious Diseases Analytical Research Unit, University of Sheffield - Department of Infection, Immunity and Cardiovascular Disease, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of Oxford - Jenner Institute, Newcastle upon Tyne Hospitals NHS Foundation Trust - Department of Infection and Tropical Medicine, University of Oxford - Oxford Vaccine Group, GSK plc, University of Oxford - The Jenner Institute, Wits Reproductive Health & HIV Institute (WRHI), University of Southampton - NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University of Oxford - Oxford Vaccine Group, University of Liverpool - School of Tropical Medicine, University of Bristol - Bristol Vaccine Centre, St George’s University London - St George’s Vaccine Institute, University College London - Department of Infection, University of Oxford - Clinical BioManufacturing Facility, University Hospitals Birmingham NHS Foundation Trust, University of Oxford - Oxford Vaccine Group, University of the Witwatersrand - South African Medical Research Council, Liverpool School of Tropical Medicine - Department of Clinical Sciences, AstraZeneca Pharmaceuticals, University of the Witwatersrand - South African Medical Research Council, University of Oxford - The Jenner Institute, University of Oxford - Centre for Vaccinology and Tropical Medicine, University of the Witwatersrand - South African Medical Research Council, University of the Witwatersrand - South African Medical Research Council, University Hospitals Bristol - University Hospitals Bristol and Weston NHS Foundation Trust, NIHR UCLH Clinical Research Facility, Hull University Teaching Hospitals NHS Trust, University of Oxford - Centre for Vaccinology and Tropical Medicine, AstraZeneca Pharmaceuticals, Braziland Hospital São Rafael - Escola Bahiana de Medicina e Saúde Pública, Universidade Federal do Rio Grande do Norte (UFRN), University of Oxford - The Jenner Institute, London Northwest University Healthcare, University of Oxford - Oxford Vaccine Group, University of the Witwatersrand - Perinatal HIV Research Unit, Setshaba Research Centre, University of Oxford - Oxford Vaccine Group, Hospital Quinta D'OR, University of Oxford - Oxford Vaccine Group, Imperial College London - Department of Infectious Disease, University of Oxford - Oxford Vaccine Group, University of Oxford - Oxford Vaccine Group, Hospital Universitário de Santa Maria, University of Glasgow - College of Medical, Veterinary & Life Sciences, University of Oxford - Centre for Vaccinology and Tropical Medicine, University of Oxford - Centre for Vaccinology and Tropical Medicine, Universidade Federal do Rio Grande do Sul, Western General Hospital - Clinical Infection Research Group, MRC-University of Glasgow Centre for Virus Research, University of Cambridge - Department of Medicine, Royal Papworth HospitalUniversity of Cambridge - Heart and Lung Research Institute, Nottingham University Hospitals NHS Trust, AstraZeneca Biopharmaceuticals, AstraZeneca Pharmaceuticals, AstraZeneca Pharmaceuticals, Anuerin Bevan University Health Board, University of Oxford - The Jenner Institute, University of Oxford - The Jenner Institute, University of Oxford - Chinese Academy of Medical Science Oxford Institute (COI), University of Oxford - Oxford Vaccine Group and Independent

London School of Hygiene & Tropical Medicine - Department of Infection Biology, University of Cambridge - Department of Medicine, University of Cambridge - Department of Medicine, University of Cambridge - Department of Medicine, Genomics England, University of Cambridge - Department of Veterinary Medicine, University of Cambridge - Department of Veterinary Medicine, European Bioinformatics Institute (EMBL-EBI) - Wellcome Genome Campus, Wellcome Sanger Institute, British Society for Antimicrobial Chemotherapy, National Hospital for Tropical Diseases, National Hospital for Tropical Diseases, National Hospital for Tropical Diseases, National Hospital for Tropical Diseases, NHS Foundation Trust - Cambridge University Hospitals, University of Cambridge - Department of Veterinary Medicine, University of Cambridge - Department of Veterinary Medicine, University of Cambridge - Department of Medicine and NHS Foundation Trust - Cambridge University Hospitals

European Bioinformatics Institute (EMBL-EBI) - Wellcome Genome Campus, National Hospital for Tropical Diseases, University of Cambridge - Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), National Hospital for Tropical Diseases, National Hospital for Tropical Diseases, Bach Mai Hospital, National Hospital for Tropical Diseases, Bach Mai Hospital, Bach Mai Hospital, Hospital of Tropical Diseases - Oxford University Clinical Research Unit, Hanoi Medical University, University of Cambridge, University of Cambridge, University of Cambridge, Hospital of Tropical Diseases - Oxford University Clinical Research Unit, Hospital of Tropical Diseases - Oxford University Clinical Research Unit, University of Cambridge - Department of Veterinary Medicine, National Hospital for Tropical Diseases, National Hospital for Tropical Diseases, European Bioinformatics Institute (EMBL-EBI) and University of Cambridge - Department of Medicine

Wellcome Sanger Institute, National Hospital for Tropical Diseases, Wellcome Sanger Institute, University of Cambridge - Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), National Hospital for Tropical Diseases, Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Wellcome Sanger Institute, Hospital of Tropical Diseases - Oxford University Clinical Research Unit, Hanoi Medical University, Bach Mai Hospital, Bach Mai Hospital, affiliation not provided to SSRN, Bach Mai Hospital, National Hospital for Tropical Diseases, University of Cambridge - Department of Medicine, University of Cambridge, University of Cambridge, Hospital of Tropical Diseases - Oxford University Clinical Research Unit, University of Cambridge - Department of Veterinary Medicine, Hospital of Tropical Diseases - Oxford University Clinical Research Unit, National Hospital for Tropical Diseases, National Hospital for Tropical Diseases, University of Cambridge - Department of Medicine and Wellcome Sanger Institute