1. London School of Hygiene & Tropical Medicine, London, UK;
2. London School of Hygiene & Tropical Medicine, London, UK;, Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre,
3. African Institute for Development Policy, Lilongwe,
4. Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre,
5. Kamuzu University of Health Sciences, Blantyre, Malawi;
6. Kamuzu University of Health Sciences, Blantyre, Malawi;, University of Liverpool, Liverpool, UK;
7. National TB and Leprosy Elimination Programme, Ministry of Health, Lilongwe, Malawi;
8. Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, University of Glasgow, Glasgow, Scotland, UK