New animal-to-human spillover sparks fastest-moving Ebola outbreak in DRC

Researchers from the DRC, Uganda, Belgium and other nations examined viral genomes from 22 patients and concluded that the present Ebola flare began with an independent spillover from an animal reservoir, rather than a resurgence of earlier human outbreaks. This Bundibugyo strain differs genetically from the 2007 and 2012 variants and has spread rapidly across eastern DRC and into Uganda. To date, the epidemic has claimed over 2,000 lives among 4,449 confirmed cases, outpacing previous outbreaks in speed.

WHO Director-General Tedros Adhanom Ghebreyesus warned the trajectory could eclipse the 2014-2016 West African epidemic, while WHO’s emergency response chief projected a peak within six months under moderate scenarios. No licensed vaccine or virus-specific treatment exists for this strain, so care relies on supportive therapy and experimental drugs under development. Authorities are dispatching personal protective equipment and other supplies, and experts stress the need for stronger surveillance at the human-animal interface to prevent future spillovers.