1. 1TB Centre, London School of Hygiene & Tropical Medicine, London, United Kingdom;
2. 2Department of Medicine, University of Cape Town, Cape Town, South Africa;
3. 3The Aurum Institute, Johannesburg, South Africa;
4. 4School of Public Health, University of the Witwatersrand, Johannesburg, South Africa;
5. 5Advancing Care and Treatment for TB and HIV, South African Medical Research Council. Johannesburg, South Africa;
6. 6Johns Hopkins University School of Medicine, Baltimore, Maryland;
7. 7Foundation for Professional Development, Pretoria, South Africa;
8. 8North Bristol NHS Trust, Bristol, United Kingdom;
9. 9Africa Health Research Institute, School of Laboratory Medicine & Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa