[1] USN, Ghana Detachment, Med Res Unit 3, Vector Biol Res Program, FPO, AE 09835 USA
[2] USN, Med Res Unit, Infect Dis Directorate, Silver Spring, MD USA
[3] Noguchi Mem Inst Med Res, Dept Parasitol, Accra, Ghana
[4] Noguchi Mem Inst Med Res, Dept Epidemiol, Accra, Ghana
[5] Noguchi Mem Inst Med Res, Dept Entomol, Accra, Ghana
[6] Ghana Hlth Serv, Ho Dist Directorate, Ho, Ghana