1. Lung Infection and Immunity Unit, Department of Medicine, Division of Pulmonology and UCT Lung Institute; University of Cape Town; Cape Town South Africa
2. Division of Medical Microbiology, and the Institute of Infectious Disease and Molecular Medicine; University of Cape Town; Cape Town South Africa
3. Clinical Infectious Diseases Research Initiative, Institute of Infectious Diseases and Molecular Medicine, Department of Medicine; University of Cape Town; Cape Town South Africa
4. Department of Health, Tuberculosis and Chest Service; Centre for Health Protection; Hong Kong China
5. Division of Clinical Infectious Diseases, German Center for Infection Research (DZIF); Research Center Borstel; Borstel Germany