1. Laboratory of Parasitology, Institute Pasteur of Bangui, P.O. Box 923, Bangui, Central African Republic
2. Epidemiology Service, Institute Pasteur of Bangui, P.O. Box 923, Bangui, Central African Republic
3. Medical Entomology Service, Institute Pasteur of Bangui, P.O. Box 923, Bangui, Central African Republic
4. Virology Department, Institute Pasteur of Bangui, P.O. Box 923, Bangui, Central African Republic