Yellow fever – Nigeria

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On 29 August 2019, a suspected yellow fever case was reported from Kano state with a travel history to Yankari game reserve, Alkaleri Local Government Area (LGA), Bauchi state, Nigeria.

From 29 August through 22 September 2019, Nigeria reported an outbreak of yellow fever with an epi-centre in the Yankari game reserve of Alkaleri LGA, Bauchi state. According to Nigeria Centre for Disease Control (NCDC), 231 suspected cases have been reported in four states including Bauchi (110), Borno (109), Gombe (10), and Kano (2), of which there have been 13 presumptive positive by IgM testing and 24 cases positive by reverse-transcriptase polymerase chain reaction (RT-PCR) at national laboratories. Of 24 cases confirmed by RT-PCR (20 cases in Bauchi, three in Gombe and one in Kano state), six deaths were reported, all from Alkaleri LGA, Bauchi state, resulting in a case fatality ratio of 25% among the confirmed cases. The vaccination history for the 231 suspected yellow fever cases is not known, and the results of follow-up testing from regional reference laboratory Institute Pasteur Dakar (IPD) are not yet available.

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