1. Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
2. Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Churchill Hospital, Oxford, UK
3. Kellogg College, University of Oxford, Oxford, UK
4. Centre for Social Science and Global Health, University of Amsterdam, Amsterdam, The Netherlands
5. Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands
6. Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Microbiology Laboratory, Vientiane, Laos
7. Savannakhet Provincial Health Department, Savannakhet Province, Laos
8. Faculty of Postgraduate Studies, University of Health Sciences, Vientiane, Laos