Assessment of Risk to the U.S. Population from the Ebola Disease Outbreak Caused by Bundibugyo Virus, 2026 MMWR
This CDC Morbidity and Mortality Weekly Report (MMWR) early release (June 5 2026) presents a rapid risk assessment of the 2026 Bundibugyo virus disease (BVD) outbreak centered in Ituri Province, Democratic Republic of the Congo, with additional cases in Uganda. The report documents 378 confirmed cases and 63 deaths as of June 2 2026. Using a standardized CDC risk‑assessment framework that independently evaluates the likelihood of infection and the impact of infection, CDC experts modeled traveler movement, applied enhanced screening measures, and reviewed historical Ebola data. The overall risk to the U.S. general population over the next three months was judged low, driven by an extremely low likelihood of importation (modeled relative importation risk ≈ 1.3 %) but a high potential impact due to severe disease, lack of approved vaccines or therapeutics, and substantial public‑health resource needs. Confidence in the assessment is moderate, reflecting limited data on Bundibugyo virus, diagnostic challenges, and the outbreak’s location in a conflict‑affected region. The report outlines public‑health implications, emphasizing continued support for outbreak control in DRC, rapid case identification and isolation capacity in the U.S., and coordinated risk communication. Limitations include sparse historical BVD data, uncertain geographic spread, and potential under‑detection. The document concludes with acknowledgments, author affiliations, conflict‑of‑interest statements, and references to parallel assessments by WHO, ECDC, Canada, and Africa CDC.
Topics
Bundibugyo Virus Outbreak Overview (2026)
Provides the epidemiologic context: location (Ituri Province, DRC and Uganda), case counts (378 confirmed, 63 deaths), and timeline of the outbreak declaration on May 15 2026.