[1] Mahidol Univ, Fac Trop Med, Dept Clin Trop Med, Bangkok, Thailand
[2] Royal Inst, Bangkok, Thailand
[3] Churchill Hosp, Ctr Trop Med, Oxford OX3 7LJ, England
[4] Hop La Pitie Salpetriere, INSERM, UMR S 945, Dept Parasitol, Paris, France
[5] Univ Paris 06, Paris, France
[6] Natl Univ Singapore, Fac Med, Dept Microbiol, Lab Mol & Cellular Parasitol, Singapore 117548, Singapore