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apr 25, 1991 - 12 states affected: Kano, Katsina, Bendel, Borno. - The epidemiological peak in October - 2,561 cases, 661 deaths reported - CFR 26% - 54% cases <15 y/o - M:F sex ratio 1.1

Added to timeline:

25 Oct 2017
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142
test1

Date:

apr 25, 1991
Now
~ 27 years ago
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