⚠Situational awareness tool — not an operational trigger. Any mobilization requires direct WHO verification and validation through your institutional protocol.

HIGH RISK

Lassa fever

📍 Nigeria

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Confirmed cases

855

Deaths

214

Case fatality rate

25.0%

Cumulative cases since outbreak start — WHO DON bulletin dated 2026-06-06

Report date : 2026-06-06

Official report date — in isolated zones, field onset typically precedes this by days to weeks.

Region : africa

Nigeria CDC — Lassa fever situation report (2026-06-06): 855 confirmed cases and 214 deaths (CFR 25%) cumulative in 2026. Source: NCDC weekly sitrep.

Focal Point GuidanceIMMEDIATE · IHR NOTIFIABLE

First actions

→Notify WHO National Focal Point within 24 h — IHR Art. 6 obligation
→Activate Incident Management System (IMS) or Emergency Operations Centre
→Dispatch field investigation team — confirm case definition and epicentre
→Brief senior health authority and issue first situation report

Source: Nigeria CDC↗

🔄Last checked by HealthWatch : 4h ago

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Cite this page (Vancouver)

HealthWatch Global. Lassa fever outbreak — Nigeria [Internet]. 2026-06-06 [cited 2026 Jul 06]. Available from: https://healthwatch-global.com/en/outbreak/4dee8751-4a98-43ed-85c5-51b1c74dc5c6. Data source: Nigeria CDC.

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