1. School of Biosciences, The Florey Institute, University of Sheffield, Sheffield, United Kingdom
2. The Medical Research Council, The Gambia, London School of Hygiene and Tropical Medicine, Serekunda, The Gambia
3. Department of Infection, Immunity & Cardiovascular Disease, The Florey Institute, University of Sheffield Medical School, Sheffield, United Kingdom
4. Department of Microbiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
5. Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
6. Hospital for Tropical Diseases, London, United Kingdom