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DTIC ADA170737: Rapid Diagnosis of Arbovirus and Arenavirus Infections by Immunofluorescence.

A serologic survey of equatorial Africa for antibodies in man to Crimean- hemorrhagic fever-Cong, Rift Valley fever, Ebola, Lassa fever, and Marburg viruses was continued. In Sudan, prevalence rates were Marburg 0.2%, CCHF 0.7%, Lassa 3.9%, RVF 4.6%, EBO-Zaire 8.2%, and EBO-Sudan 11.2%. Significant geographic clustering of antibody positive sera occurred for Lassa, EBO-Z and EBO-S viruses. Over 1000 sera from the Benue river basin in Nigeria which were collected by WHO in 1964-1965 have been tested. The prevalence rates are Congo 27%, RVF 17%, EBO-Z 6%, EBO-S 39% with 27% positive to Congo, an…