Ethiopia's first Marburg virus outbreak ends after 14 confirmed cases and 9 deaths in South Ethiopia Regional State

Summary

Ethiopia declared the end of its first Marburg virus disease outbreak on January 26, 2026, after two consecutive incubation periods (42 days) elapsed since the death and safe burial of the last confirmed case on December 14, 2025. The outbreak was confirmed on November 14, 2025 in Jinka town, located in the South Ethiopia Regional State in the Omo Valley region. By January 25, 2026, the cumulative total was 14 confirmed cases and 9 deaths (case fatality rate 64.3%), plus 5 probable cases all of whom died. Ethiopian health authorities, supported by WHO, CDC and regional partners, conducted contact tracing of 857 individuals, all of whom completed their 21-day monitoring period with no additional confirmed cases. No Marburg cases linked to the Ethiopia outbreak were reported outside the country. The outbreak was notable as the first ever Marburg virus disease event in Ethiopia and among the larger recent events of the disease outside the historical Angola 2004-05 outbreak.

The split

WHO and African public health institutions framed the outbreak end as a rapid-response success, citing the effective contact-tracing operation and the absence of spread to other regions of Ethiopia or to neighboring countries. Ethiopian media covered the declaration of outbreak end as national health news. International infectious disease media and journals focused on the epidemiological significance of detecting Marburg in a new country (Ethiopia), which had not previously been recorded in outbreak history, and on what the detection implies about the geographic range of the Egyptian fruit bat reservoir. South African and East African public health agencies issued regional risk assessments noting that the fruit bat reservoir is present across much of East Africa.

By the numbers

• 14, confirmed Marburg cases (as of January 25, 2026)
• 9, deaths among confirmed cases (CFR 64.3%)
• 5, probable cases (all died)
• 14+5 = 19 total deaths
• 857, contacts monitored through 21-day follow-up
• November 14, 2025, onset of first confirmed case (Jinka, South Ethiopia)
• December 14, 2025, date of last confirmed death and safe burial
• January 26, 2026, date outbreak declared over

Why it matters

Marburg virus is among the most lethal pathogens in the filovirus family, with CFRs ranging from 24 to 88 percent across historical outbreaks. The appearance of Marburg in Ethiopia for the first time extends the known outbreak geography in the Horn of Africa and raises questions about bat-to-human spillover pathways in the Omo Valley, a region with significant agropastoral activity and wildlife interface zones. The rapid containment, achieved through aggressive contact tracing in a remote and resource-limited setting, provides a data point for outbreak response planning. The precedent of Marburg appearing in a country with no prior outbreak history is relevant to biopreparedness planning across all East African states where the Rousettus fruit bat is present.

What to watch

• Whether follow-up ecological investigations identify the specific bat colony associated with the Jinka spillover
• Whether WHO updates the Africa Marburg outbreak risk map to include Ethiopia as an endemic zone
• Ethiopia's post-outbreak review and whether it leads to updated Marburg surveillance protocols in Omo Valley healthcare facilities
• Any report of linked cases that emerged after the declared end date