Health authorities in the Democratic Republic of Congo and the World Health Organization reported a sharp increase in Ebola cases during May 2026.
The surge is critical because the outbreak is driven by the rare Bundibugyo strain of the virus, which presents significant challenges for detection and containment in densely populated areas.
The epicenter of the outbreak is the gold-mining town of Mongbwalu in Ituri province, which has a population of 130,000 [4]. Confirmed cases across the region have risen to at least 260 [1].
Death tolls vary by reporting agency. The WHO director-general reported 134 confirmed deaths [2]. However, Ugandan health authorities reported a higher figure of 220 suspected deaths [3]. This discrepancy highlights the difficulty of tracking fatalities in the affected regions, a struggle compounded by the speed of the virus.
Medical teams and the World Health Organization have intensified response measures to curb the spread. The outbreak spike was formally reported on May 27, 2026 [5]. Efforts now focus on increasing testing capacity and isolating patients in the north-east region of the country to prevent the virus from crossing further international borders.
Local authorities said the geography of the mining town and the mobility of the workforce make the containment of the Bundibugyo strain particularly difficult. Health workers are working to implement emergency protocols to stabilize the region and prevent further loss of life.
“Confirmed cases across the region have risen to at least 260”
The use of the Bundibugyo strain, which is less common than the Zaire strain, complicates the public health response because existing vaccines and diagnostic tools may have different efficacy levels. The location of the outbreak in a high-traffic mining hub like Mongbwalu increases the risk of regional transmission, potentially turning a localized emergency into a cross-border crisis involving neighboring countries like Uganda.
