1. Department of Global Health and Infection Brighton and Sussex Medical School Brighton UK
2. Africa Health Research Institute KwaZulu-Natal South Africa
3. Research Department of Infection & Population Health University College London London UK
4. London School of Hygiene and Tropical Medicine London UK
5. SAPRIN South African Medical Research Council Cape Town South Africa
6. Division of Infection and Immunity University College London London UK
7. Harvard Medical School Boston MA USA