University of Cape Town (UCT) - Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town (UCT) - Wellcome Centre for Infectious Disease Research in Africa, University of Cape Town (UCT) - Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town (UCT) - Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town (UCT) - Wellcome Centre for Infectious Diseases Research in Africa, University of Cape Town (UCT) - Wellcome Centre for Infectious Diseases Research in Africa, The University of Western Australia - Division of Infection and Immunity, Khayelitsha Hospital - Department of Medicine, University of Cape Town (UCT) - Wellcome Centre for Infectious Disease Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town (UCT) - Department of Medicine, University of Cape Town (UCT) - Wellcome Centre for Infectious Disease Research in Africa and University of Liverpool - Institute of Infection and Global Health