Ebola Outbreak Linked to Bundibugyo Virus in DRC

The current Ebola outbreak in the Democratic Republic of the Congo is caused by the Bundibugyo virus, a highly fatal pathogen. As of May 28, 2026, the outbreak had surpassed 1,250 cases and resulted in at least 362 deaths. The Bundibugyo virus presents with sudden onset symptoms including headaches, diarrhea, and malfunctioning kidneys and liver. Less frequently, it can cause internal and external bleeding, classifying it as a hemorrhagic disease. A significant challenge in controlling the spread is that contagiousness persists even after death, posing a risk to family members and loved ones during funeral preparations, such as washing and clothing the body.

This outbreak was smoldering under the radar while public health departments were focused on other infectious disease events, such as an Andes virus outbreak on a cruise ship in Argentina, which reported 13 cases and three deaths. Understanding the wildlife origins of Ebola is considered crucial for preventing future large-scale outbreaks. Without knowledge of the source, human populations remain at risk, and wildlife populations can also suffer from retaliatory actions. The Bundibugyo virus is one of six species within the genus Ebolavirus, and its specific zoonotic origins and transmission pathways are critical areas of study for effective public health interventions.