Short Report: Rift Valley Fever in Western Africa: Isolations from Aedes Mosquitoes During an Interepizootic Period

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  • Laboratoire de Zoologie Medicale, ORSTOM, Institut Pasteur, Dakar, Senegal

Thirteen strains of Rift Valley fever virus were isolated from Aedes vexans and Ae. ochraceus mosquitoes collected in October and November 1993 in northern Senegal. Entomologic and serologic data show that the risk of a new epizootic is increasing in this region.