1. Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, United Kingdom
2. Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
3. National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
4. China Office, Bill & Melinda Gates Foundation, Beijing, China; and
5. School of Public Health, University of the Witwatersrand, Johannesburg, South Africa