1. Wellcome Trust Major Overseas Programme; Oxford University Clinical Research Unit; Ho Chi Minh City Viet Nam
2. Centre for Tropical Medicine; Nuffield Department of Clinical Medicine; Oxford University; Oxford UK
3. Nuffield Department of Clinical Medicine; University of Oxford; Oxford UK
4. Centre for Immunity, Infection & Evolution; The University of Edinburgh; Edinburgh UK
5. Health and Biosecurity; CSIRO, Australian Animal Health Laboratory; Geelong Vic. Australia
6. The London School of Hygiene and Tropical Medicine; London UK