Ebola Bundibugyo outbreak rages, knowledge gaps still challenge response

Ebola Bundibugyo outbreak rages as scientists race to understand a fast-growing Congo cluster while detection and care remain constrained by major knowledge gaps. Since the outbreak was declared in mid-May, the Democratic Republic of Congo has reported more than 1,100 cases and nearly 300 deaths, the largest Bundibugyo strain outbreak to date. Neighboring Uganda has recorded 20 confirmed cases and two deaths. The World Health Organization said the disease is only beginning to be understood, highlighting that standard tests often detect Ebola Zaire rather than Bundibugyo. WHO and Congolese officials noted there are no vaccines or treatments available for Bundibugyo, though treatment trials are expected to start next week. Symptoms can begin mildly and overlap with malaria, contributing to more than 50% of patients presenting at advanced stages. Separately, CDC estimates put bleeding in about 40% of cases, but early evidence suggests it may be less common in this outbreak.