Marburg Virus Disease · Journal article
Global Epidemiology · July 1, 2026
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This is a descriptive report of Ethiopia's first Marburg virus outbreak (November–December 2025) involving 14 confirmed cases with a 64% case fatality rate. Transmission intensity measures (initial R0 2.34, Rt <1.0 within 14 days of intervention) and deployment of vaccine and drone-assisted logistics are documented, but the retrospective design without a control arm does not establish causality of the containment strategy.
Retrospective descriptive study. Confirmed Marburg virus disease cases identified during the outbreak in Jinka, Ethiopia; setting was a resource-limited area with nosocomial and religious transmission clusters.. Intervention: Activation of Incident Management System with diagnostic testing scaling, deployment of investigational cAd3-Marburg vaccine to high-risk groups, and drone-assisted ultra-cold chain logistics for -80 °C supply chain.. n = 14. Jinka, Ethiopia.
Outbreak involved 14 confirmed cases and 9 fatalities, with CFR of 64% Initial basic reproduction number (R0) was 2.34, driven by nosocomial and religious clusters Diagnostic testing increased by over 1000% following activation of Incident Management System
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This outbreak characterization documents Ethiopia's first MVD emergence and the epidemiological response; the rapid decline in transmission (Rt <1.0 within 14 days) following scaled diagnostics and vaccine deployment suggests that integrated rapid response may be effective in similar resource-limited settings, but evidence remains observational and not suitable for definitive causal inference.
Retrospective descriptive study of a small outbreak (14 cases) with no comparator arm; temporal associations observed but causality cannot be inferred from this design.
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This outbreak characterization documents Ethiopia's first MVD emergence and the epidemiological response; the rapid decline in transmission (Rt <1.0 within 14 days) following scaled diagnostics and vaccine deployment suggests that integrated rapid response may be effective in similar resource-limited settings, but evidence remains observational and not suitable for definitive causal inference.
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Background. In November 2025, Ethiopia confirmed its first Marburg Virus Disease (MVD) outbreak in Jinka, marking a significant geographical expansion of the virus with a 64% case fatality rate. This study characterizes the transmission dynamics of the 2025 MVD outbreak in Ethiopia and evaluates the impact of the national public health containment strategy on the epidemic trajectory.Methods. We conducted a retrospective descriptive analysis using surveillance and laboratory data from November 14 to December 30, 2025. Transmission intensity was quantified using basic (R0) and effective (Rt) reproduction numbers. We further evaluated the deployment of the investigational cAd3-Marburg vaccine and the feasibility of drone-assisted ultra-cold chain logistics under the national Evidence Generation during an Emergency (EGE) framework.Findings. The outbreak involved 14 confirmed cases and 9 fatalities (CFR: 64%). The initial R0 was 2.34, driven by nosocomial and religious clusters. Following the activation of the Incident Management System, diagnostic testing increased by over 1000%, and 2500 vaccine doses were deployed to high-risk groups. The use of drone logistics was observed to support the -80 °C cold chain for deliveries in remote areas. Rt fell below 1.0 within 14 days of formal intervention.Interpretation. The findings are consistent with the hypothesis that the combination of rapid diagnostic scaling decentralized incident management and technological integration were temporally associated with the truncation of MVD transmission chains. The integrated approach of decentralized management and rapid technological deployment offers a framework for viral hemorrhagic fever preparedness in similar resource-limited settings.
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