Ebola outbreak in DRC threatens South Sudan with 70% spillover risk

Modelling published in The Lancet predicts a 69.3% chance that the ongoing Ebola outbreak in the Democratic Republic of Congo (DRC) will spread to neighboring South Sudan, a country with some of the world’s weakest health systems. The outbreak, centered in DRC’s Ituri province, has so far recorded 1,048 confirmed cases and 267 deaths, with the rare Bundibugyo strain also affecting Uganda (20 cases, 3 deaths). Researchers estimate that, if the medium‑scenario continues, cumulative cases could reach about 8,200 by September.

The World Health Organization (WHO) notes the epidemic is outpacing response efforts, citing shortages of testing kits, security threats to health workers, and atypical symptom presentation that hampers detection. A recent imported case in France involving a doctor who treated patients in the DRC has been reported, though the broader risk to the French population is considered low. WHO officials stress the urgency of preparing for possible cross‑border transmission, especially to South Sudan, Rwanda and Burundi, where modelling shows lower but still relevant probabilities.

The report underscores the need for intensified surveillance, vaccine deployment, and protection of health personnel to curb further spread of the deadly hemorrhagic fever.