1. Lung Infection and Immunity Unit, Division of Pulmonology, University of Cape Town Lung Institute and Clinical Immunology, Department of Medicine, University of Cape Town, Cape Town, South Africa
2. Lung Infection and Immunity Unit, Division of Pulmonology, University of Cape Town Lung Institute and Clinical Immunology, Department of Medicine, University of Cape Town, Cape Town, South Africa; Institute of Infectious Diseases and Molecular Medicine,
University of Cape Town, Cape Town, South Africa; and Centre for Infectious Diseases and International Health, Department of Infection, University College London Medical School, London, UK