1. Community Health Science Unit, National Tuberculosis Control Programme, Lilongwe, Malawi
2. Community Health Science Unit, National Tuberculosis Control Programme, Lilongwe, Malawi, International Training and Education Center for Health (I-TECH) Malawi, Department of Global Health, University of Washington, Seattle, Washington, USA
3. Medical Department, M�decins Sans Fronti�res, Operational Centre Brussels, Luxembourg City, Luxembourg
4. International Union Against Tuberculosis and Lung Disease, Paris, France, London School of Hygiene & Tropical Medicine, London, UK
5. International Training and Education Center for Health (I-TECH) Malawi, Department of Global Health, University of Washington, Seattle, Washington, USA, Department of HIV and AIDS, Ministry of Health, Lilongwe, Malawi
6. Department of HIV and AIDS, Ministry of Health, Lilongwe, Malawi