20 août 1969 - 1969: The first YF epidemic recorded.
- Benue State (Town of Jos)
- After long rainy season
- 208 cases, 60 deaths (reported)
- CFR 29%
- 55 cases laboratory confirmed
- Real incidence suspected
10,000 cases and 1,000 deaths
- Majority of cases 15-34 y/o
- M:F sex ratio: 4:1.
- Aedes luteocephalus incriminated
