Bikoro, Iboko and Mbandaka health zones

Zaire ebolavirus · Équateur · verified historical

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Summary

An outbreak in Bikoro, Iboko and Mbandaka health zones of Équateur Province, DRC, infected 54 people and killed 33 (CFR 61%). It marked the first emergency deployment of rVSV-ZEBOV vaccine under WHO's compassionate-use framework, with 3,481 doses administered via ring vaccination. The outbreak was declared over after 42 days without new cases.

Why this matters

First emergency-use ring vaccination with rVSV-ZEBOV; precedent-setting deployment of an unlicensed vaccine in an active outbreak.

Sources

T1 Ebola Virus Disease Distribution Map and Outbreak History CDC · 2026-05-18
T1 End of Ebola outbreak in the Democratic Republic of the Congo WHO · 2026-05-18