WHO 疫情通报 · 快讯

The Bundibugyo virus disease (BVD) outbreak in the Democratic Republic of the Congo is in a phase of intense transmission. It is the largest Ebola outbreak ever reported in the country and expanding faster than any previous Ebola outbreak. The epidemic is increasingly characterized by sustained transmission within interconnected geographic clusters. Initially confined to the Mongbwalu health zone in Ituri Province, the outbreak has now expanded to 54 health zones across six provinces (Ituri, North Kivu, South Kivu, Haut-Uélé, Tshopo, and Bas-Uélé). The most recently affected Bas-Uélé province recorded one confirmed case in Buta health zone with travel history to Haut-Uélé and onset of symptoms on 4 August. As of 12 August 2026, a total of 4665 confirmed cases, including 2184 deaths, have been reported, corresponding to a crude case fatality ratio (CFR) of 46.8%. The ongoing rise in cases, broader geographic spread, and continued high mortality demonstrate the rapidly changing scope of this public health emergency of international concern. During the most recent reporting week (epidemiological week 32, 3 to 9 August 2026), the highest weekly number of reported cases (579) and deaths…