The Democratic Republic of the Congo’s Bundibugyo Ebola outbreak has surpassed 5,794 confirmed cases with 2,786 deaths, making it the largest Ebola outbreak ever recorded in the country and the second-largest anywhere since the devastating West Africa epidemic of 2014 to 2016.
The latest national figures, released by the DRC Ministry of Health on August 26 and relayed by the European Centre for Disease Prevention and Control, showed 843 patients hospitalised in isolation. The case-fatality rate stands at approximately 48 percent, one of the highest recorded in any major Ebola outbreak.
Transmission has reached six provinces and 60 of 151 health zones. Ituri Province remains the epicentre with 4,750 confirmed cases across 28 health zones, followed by North Kivu with 753 cases. Haut-Uele, a newly affected province, has reported 207 confirmed cases, while smaller clusters have emerged in Tshopo and Bas-Uele. South Kivu has recorded only three cases, with no new confirmations since late May.
Faster Than Any Previous Outbreak
WHO Director-General Tedros Adhanom Ghebreyesus told the second IHR Emergency Committee meeting on August 18 that the epidemic is spreading faster than any previous Ebola outbreak and remains far from under control. The outbreak surpassed 1,000 confirmed cases within 40 days of response activation. By comparison, DRC’s 2018 outbreak took approximately 235 days to reach the same threshold.
The speed of transmission has strained an already fragile response. Ongoing armed conflict in eastern DRC complicates contact tracing, while attacks on healthcare workers and shortages of personal protective equipment have contributed to infections among medical staff. At least 151 health workers have been infected and 44 have died since the outbreak began on May 15.
Frequent population movement and cross-border travel have raised concerns about spread to neighbouring countries. Uganda experienced a small spillover, recording 20 confirmed cases and two deaths before its outbreak was declared over on July 27 after 42 consecutive days without a new locally acquired case. One imported case has been confirmed in France.
Vaccine Trials Underway
In a significant development, Ebola vaccination efforts have begun in the DRC, with two Bundibugyo-specific vaccine candidates entering human trials. A third candidate is moving toward a phase 3 trial after demonstrating cross-protection in animal studies. The WHO-sponsored PARTNERS treatment trial, which opened enrolment on July 2, has enrolled over 100 confirmed cases across three facilities in Ituri Province.
“These are critical milestones, but the outbreak is still expanding,” said Dr Tedros. “We need faster data sharing, stronger surveillance, sustained financing, and improved access and security across the affected zones.”
Africa CDC Director-General Dr Jean Kaseya praised Uganda’s containment success while urging an accelerated response in the DRC. “We will only be secure when transmission is stopped everywhere,” he said following Uganda’s official outbreak declaration on August 27.
Record-Breaking Epidemic in a Conflict Zone
The current outbreak is the 17th Ebola event in DRC’s history, but its scale dwarfs all previous episodes. With 5,794 confirmed cases in the DRC alone, it has exceeded the 3,470 cases and 2,287 deaths recorded during the 2018 to 2020 North Kivu and Ituri outbreak, previously the country’s worst.
The epicentre in Mongbwalu Health Zone in Ituri Province is a high-traffic mining area, a factor that has accelerated community spread. The combination of active conflict, displaced populations, weak health infrastructure, and now cross-border reach has made this the most complex Ebola response in history.
The US CDC has implemented enhanced entry screening for travellers from the DRC, temporarily restricting entry for anyone who has been in the country within 21 days of their flight. The agency maintains that the risk to the American public remains very low.
With the 48 percent fatality rate and no licensed vaccines or treatments specifically approved for Bundibugyo virus, control depends on rapid detection, isolation, contact tracing, safe burials, and community engagement. International health organisations have called for 518 million dollars to fund a continental response plan.
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