1. Makerere University, College of Health Sciences, School of Public Health-Kampala, Uganda
2. National Tuberculosis and Leprosy Programme-Kampala, Uganda
3. National Tuberculosis Reference Laboratory-Kampala, Uganda
4. College of Public health, University of Georgia, 101 Buck Road, Athens, GA 30602, USA
5. Department of Paediatrics & Child Health College of Health Sciences, Makerere University-Kampala, Uganda