1. Section of Infectious Diseases, Boston University School of Medicine, Massachusetts;
2. National Health Laboratory Service, Cape Town, South Africa;
3. Infectious Disease Prevention and Health Services Bureau, Prevention and Health Promotion Administration, Maryland Department of Health and Mental Hygiene, Baltimore;
4. Department of Science and Technology/National Research Foundation Centre of Excellence in Biomedical Tuberculosis Research/South Africa Medical Research Council for Molecular Biology and Human Genetics, Stellenbosch University, Tyberberg;
5. Department of Biostatistics, Boston University School of Public Health;
6. Department of Cancer Biology, Dana-Farber Cancer Institute, Cambridge, Massachusetts;
7. Department of Molecular Medicine and Haematology, School of Pathology, University of the Witwatersrand and National Health Laboratory Service, National Priority Program, Johannesburg, South Africa;
8. Department of Epidemiology, University of North Carolina, Chapel Hill;
9. Department of Epidemiology and Social Medicine and Epidemiology for Global Health Institute, University of Antwerp, Belgium