Bundibugyo Ebola outbreak expanding in the Democratic Republic of the Congo
WHO report 19 (data as of September 20) records 475 new confirmed cases and 222 deaths since report 18, bringing the cumulative total to 7,733 confirmed cases and 3,732 deaths (CFR 48.3%) across 63 health zones. Dungu, in Haut-Uélé, is the newest affected health zone and borders South Sudan. Transmission is in the DRC; Uganda declared its outbreak over on July 28.
- Location
- Democratic Republic of the Congo · 63 health zones; newest zone Dungu (Haut-Uélé)
- Representative point near the epicentre
- First seen
- May 15, 2026
- Last verified
- September 25, 2026
Markers use representative points at the country or regional level, not exact incident locations. Placement indicates the affected area, not a precise site.
What changed since the prior scan
Updated September 25 to WHO report 19 (data to September 20): +475 confirmed cases and +222 deaths since report 18, for a cumulative 7,733 cases and 3,732 deaths (CFR 48.3%) across 63 health zones, with Dungu (Haut-Uélé) newly affected. Removed prior wording implying current Uganda transmission — Uganda declared its outbreak over on July 28.
History
- First seen (source)
First reported by the primary source. External event date, not a TiPH publication date.
- Added to the desk
Added to the Global Signal Desk in the September 22 scan.
- Updated
Updated to WHO report 19 (data to September 20): +475 confirmed cases and +222 deaths since report 18, for a cumulative 7,733 cases and 3,732 deaths (CFR 48.3%) across 63 health zones, with Dungu (Haut-Uélé) newly affected.
Primary sources
Who works on this?
Events like this are answered by teams across public health. These are real profession types that respond to this kind of event — not people assigned to it.
Field epidemiologist
Deploys to outbreaks to investigate cases and guide the on-the-ground response.
Infection prevention and control specialist
Stops transmission within clinics and treatment centers.
Contact tracer
Finds and follows up people exposed to a confirmed case.
Biosafety officer
Protects staff and communities from high-consequence pathogens.
Community health worker
Connects affected communities to services and relays needs back to responders.
Logistics coordinator
Organizes the supplies and staffing an outbreak response depends on.
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Corrections & updates
This record is reverified against its primary sources on a twice-daily scan. When the evidence changes, the record changes and the change is logged in the review record — including signals we remove. This is situational awareness, not clinical or travel advice.