[1] NIAID, Lab Malaria & Vector Res, NIH, Rockville, MD 20852 USA
[2] NIH, Fogarty Int Ctr, Div Int Epidemiol & Populat Sci, Bethesda, MD 20892 USA
[3] Univ London London Sch Hyg & Trop Med, Fac Infect & Trop Dis, London WC1E 7HT, England
[4] Univ Nebraska Med Ctr, Coll Pharm, Omaha, NE USA
[5] Minist Hlth, Natl Ctr Parasitol Entomol & Malaria Control, Phnom Penh, Cambodia
[6] WHO, Global Malaria Programme, CH-1211 Geneva, Switzerland
[7] Univ Maryland, Sch Med, Howard Hughes Med Inst, Baltimore, MD 21201 USA
[8] Univ Maryland, Sch Med, Ctr Vaccine Dev, Baltimore, MD 21201 USA
[9] Mahidol Univ, Fac Trop Med, Mahidol Oxford Trop Med Res Unit, Bangkok, Thailand