Bundibugyo virus expands to Kenya and Nigeria, WHO reports

The Ebola disease outbreak caused by the Bundibugyo virus has expanded geographically to include imported cases in Kenya and Nigeria, while sustained high-level transmission continues in the Democratic Republic of the Congo, the World Health Organization reported.

Key Clinical Takeaways:

• The Democratic Republic of the Congo has recorded 9,704 confirmed cases and 4,687 deaths, resulting in a crude case fatality ratio of 48.3 percent across 66 health zones in eight provinces, per World Health Organization data.
• Kenya reported nine cases and one death linked to an imported case, while Nigeria confirmed a single imported case in Abuja, making it the fifth country affected since the outbreak began on May 15, 2026.

Epidemiological Spread Across Five Countries

Since the outbreak declaration on May 15, 2026, the Bundibugyo virus disease has spread across five countries: the Democratic Republic of the Congo, Uganda, France, Kenya, and Nigeria, according to World Health Organization reports. In the Democratic Republic of the Congo, cumulative confirmed cases reached 9,704 with 4,687 deaths as of October 20, 2026. The World Health Organization noted that 307 of the 482 deaths recorded in recent weeks occurred within communities rather than treatment centers, highlighting ongoing challenges with early detection and timely access to medical care.

Kenya reported its first laboratory-confirmed imported case on October 6, 2026, involving a patient who traveled from the Democratic Republic of the Congo through Uganda. As of October 20, 2026, Kenya recorded a total of nine cases and one death, with the eight secondary cases consisting of four family members and four healthcare workers belonging to a single cluster, who were all quarantined at symptom onset. Nigeria confirmed its first imported case on October 20, 2026, in the Federal Capital Territory of Abuja, involving a female patient who traveled from Uganda and developed symptoms four days after arrival.

Response Measures and Contact Tracing Performance

Health authorities are monitoring 44 contacts in Nigeria, while in Kenya nine cases including one death have been reported.

The World Health Organization is supporting a trial with technical, scientific and operational expertise. Meanwhile, the World Health Organization advised against imposing any travel or trade restrictions on affected countries.

Disclaimer: The information provided in this article is for educational and scientific communication purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider regarding any medical condition, diagnosis, or treatment plan.

More on this story: Kenya Confirms New Ebola Case, Total at 9, Reuters Reports · DRC Ebola Outbreak Reaches Eighth Province as Child Cases Rise