Event descriptionThe Bundibugyo virus disease (BVD) outbreak in the Democratic Republic of the Congo remains in a phase of intense and expanding transmission, with cumulative deaths crossing the grim milestone of 2,000 only 86 days after the outbreak was officially declared on 15 May 2026. Since External Situation Report #12, an additional 579 confirmed cases and 304 confirmed deaths have been reported, bringing the cumulative total to 4,381 confirmed cases and 2,011 confirmed deaths as of 9 August 2026, corresponding to a case fatality ratio of 45.9%. Ituri remains the epicentre, accounting for 85.8% of cumulative cases and 80.6% of cumulative deaths.