1. Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao PDR
2. National Infection Service, Public Health England, London, UK
3. Nuffield Department of Clinical Medicine, Oxford University, John Radcliffe Hospital, Headington, UK
4. National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, John Radcliffe Hospital, Headington, UK
5. Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
6. Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK