1. Department of Community Health, Mbarara University of Science and Technology, Mbarara, Uganda, Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
2. Department of Community Health, Mbarara University of Science and Technology, Mbarara, Uganda
3. Division of Pulmonary Diseases and Critical Care Medicine, University of California Irvine, Irvine, CA, USA, Center for Tuberculosis, San Francisco General Hospital, University of California San Francisco, San Francisco, CA, USA