Wellcome Trust (Grant Ref. 055487/Z/98/Z) and the Medical Research Council (Grant Ref. G9803180).; London School of Hygiene and Tropical Medicine. Department of Infectious and Tropical Diseases. Keppel Street, London, UK.; Minist?rio da Sa?de. Funda??o Nacional de Sa?de. Instituto Evandro Chagas. Bel?m, PA, Brasil.; Universiti Malaysia Sarawakc. Faculty of Medicine and Health Sciences. Kota Samarahan, Sarawak, ...
Financial support was provided by The Wellcome Trust (grant ref. 055487), the European Commission, and the University of London Central Research Fund; London School of Hygiene and Tropical Medicine. Department of Infectious and Tropical Diseases. Keppel St, London, UK.; London School of Hygiene and Tropical Medicine. Department of Infectious and Tropical Diseases. Keppel St, London, UK.; London School of Hygien...