The World Health Organization on May 17, 2026, declared the Ebola disease caused by Bundibugyo virus in the Democratic Republic of the Congo and Uganda a public health emergency of international concern, citing confirmed spread across the border and the need for faster international coordination. The agency said the event does not meet the criteria of a pandemic emergency.
The move came after two confirmed cases were reported in Kampala on May 15, both in people who had traveled from the Democratic Republic of the Congo and were admitted to intensive care units. A laboratory confirmed case was also reported in Kinshasa on May 16, widening concern that the outbreak is already moving through connected population routes in the region.
The director-general of the World Health Organization said he had consulted the states parties where the event is currently occurring before making the determination. He also thanked the leadership of the Democratic Republic of the Congo and Uganda for what he called their commitment to take vigorous action and for their frankness in assessing the risk to other states parties. WHO said the outbreak now requires international coordination and cooperation to understand how far it has spread and to align surveillance, prevention and response efforts.
The agency said neighboring countries that share land borders with the Democratic Republic of the Congo are at high risk for further spread because of population mobility, trade, travel links and continuing uncertainty about the full epidemiological picture. WHO said it will convene an Emergency Committee as soon as possible to advise on temporary recommendations for states parties, a step that underlines how quickly the situation has outgrown the two countries reporting the first cases.
The tension in this outbreak is familiar and dangerous. WHO has moved to its highest form of international alert short of a pandemic designation, but the facts it laid out show a virus already crossing borders, landing in a major city and appearing in another capital within days. That makes the next phase less about whether the world should pay attention and more about whether health systems in the region can move fast enough to keep the case count from climbing.
For public health officials, the immediate question is how far Bundibugyo virus has already traveled beyond the cases now confirmed in Kampala and Kinshasa, and whether the emergency committee can translate the alert into faster surveillance before more countries are pulled in.
