University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, South African Medical Research Council - Biostatistics Unit, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, Sefako Makgatho Health Sciences University - Department of Intensive Care, University of the Witwatersrand - Department of Internal Medicine, Walter Sisulu University - Department of Medicine, Walter Sisulu University - Head of Pulmonology, University of Kwazulu-Natal, Don Makenzie Hospital, Harry Comay Hospital, Harry Comay Hospital, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of Cape Town (UCT) - University of Cape Town Lung Institute, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, University of Cape Town (UCT) - Centre for Lung Infection and Immunity, Brooklyn Chest Hospital, Stellenbosch University - Division of Molecular Biology and Human Genetics, National Department of Health - Drug Resistant TB Directorate, University of Cape Town (UCT) - Division of Clinical Pharmacology, Stellenbosch University - Division of Molecular Biology and Human Genetics and University of the Witwatersrand - Perinatal HIV Research Unit