The world is confronting a new Ebola crisis in Central Africa, though this time the pathogen presents a uniquely challenging situation: there is no licensed vaccine and no specific treatment approved for the Bundibugyo species of the Ebola virus. The outbreak, first confirmed on May 15, 2026 in the Democratic Republic of Congo (DRC), has since spread to Uganda and one imported case in France, raising alarms across the global health community.
How the Outbreak Unfolded
On May 5, 2026, the World Health Organization was alerted to a high-mortality outbreak of unknown illness in Mongbwalu Health Zone, Ituri Province, DRC. After weeks of deaths among healthcare workers and community members, the Institut national de recherche biomédicale (INRB) in Kinshasa analyzed 13 blood samples on May 14. Eight of those samples came back positive for Bundibugyo virus on May 15 — a species of Ebola for which there has never been a commercially available vaccine or approved therapeutic.
The DRC Ministry of Public Health officially declared it the country’s 17th Ebola disease outbreak on May 15. Within days, Uganda’s Ministry of Health confirmed an outbreak there as well, following the death of a Congolese man in Kampala who had crossed the border from DRC.
The Scale of the Crisis
As of June 25, 2026, a cumulative total of 1,176 laboratory-confirmed cases, including 306 deaths, have been reported across three countries — DRC, Uganda, and France — giving the outbreak a case fatality ratio of approximately 26 percent. The DRC accounts for the vast majority of cases: 896 confirmed cases and 232 deaths as of June 17. Uganda has reported 19 confirmed cases including two deaths, with no new cases since June 5. France confirmed its first case on June 24 in a returning healthcare worker who had been deployed to DRC on a humanitarian mission.
The actual numbers are likely higher. Response efforts in eastern DRC are severely constrained by insecurity, high population movement across borders, weak contact follow-up due to community resistance, and the logistical challenges posed by extensive mining operations in affected areas.
Why This Outbreak Is Different
Unlike the Ebola virus disease — for which effective vaccines and therapeutics have been developed and deployed in past outbreaks — the Bundibugyo species has remained largely outside the spotlight of medical research. There is currently no licensed vaccine or specific therapeutic approved for Bundibugyo virus disease. Early supportive care, including rehydration and treatment of symptoms, is the primary intervention available.
On May 17, WHO Director-General Tedros Adhanom Ghebreyesus designated the outbreak a Public Health Emergency of International Concern (PHEIC) — the highest alert level under international health regulations. This designation triggers enhanced coordination, funding mechanisms and travel advisory protocols across borders.
On June 5, WHO convened a panel of experts to advise on candidate treatments and vaccines under development. While no approved products exist yet, several candidates are in the testing pipeline, offering cautious hope that medical countermeasures may become available before the outbreak peaks.
International Response and Risk Assessment
WHO has assessed the risk of spread as “very high” within the DRC, “high” in Uganda and neighboring countries sharing land borders with DRC and Uganda, and “low” at both the regional and global levels. The organization has explicitly recommended against travel or trade restrictions with affected countries, arguing that such measures would hamper the response effort and worsen the humanitarian situation.
WHO is scaling up support to the governments of DRC and Uganda, strengthening surveillance, contact tracing, clinical management, delivery of medical supplies and community engagement. The deployment of rapid response teams and the establishment of treatment centers are ongoing, though the volatile security situation in eastern DRC continues to impede access.
The outbreak is occurring in one of the world’s most challenging humanitarian contexts: a region already dealing with armed conflict, large-scale displacement and deeply fragile health infrastructure. For communities already worn down by years of crisis, the arrival of a deadly hemorrhagic fever with no cure adds a devastating new layer of hardship.
Anh: Medical workers in protective gear during an Ebola response. (Nguon: WHO / Unsplash)