26 März 1970 Jahr - 1970: 106 cases reported.
- Benue & Ito. District of d'Okwoga states.
- 22 cases, 3 deaths (laboratory confirmed)
- Real incidence estimated at 786 deaths.
- Aidogodo most strongly affected commune.
- Epidemiological peak in Nov.
- Aedes africanus incriminated
- 1.5 million were vaccinated in response
- Co-circulating arboviruses identified.
