6 май 1987 г. - April - July 1987 - Outbreak in Oyo state - Ogbomosho became the epicentre - 805 cases and 416 deaths reported - CFR 52% - Real incidence estimated (by serological testing) to be around 800,000 cases (20% of the pop) - 19 laboratory confirmed by viral insulation (5) and serology (4) - Aedes aegypti incriminated
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6 май 1987 г.
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