Bundibugyo strain lacks approved vaccines or therapeutics, raising concern among health expertsOutbreak mainly affects DRC, with confirmed cases in Uganda and monitoring in South SudanWHO warns of uncertainty over true infection numbers and geographic spread

A worker stands guard at the gate of the Kibuli Muslim Hospital where a Congolese man died of Ebola Bundibugyo virus in Kibuli suburb of Kampala, Uganda May 16, 2026. REUTERS/Abubaker Lubowa

A worker stands guard at the gate of the Kibuli Muslim Hospital where a Congolese man died of Ebola Bundibugyo virus in Kibuli suburb of Kampala, Uganda May 16, 2026. REUTERS/Abubaker Lubowa

Kopano Gumbi in Johannesburg

ReutersToday at 21:59

The World Health Organization on Sunday declared an Ebola outbreak in the Democratic Republic of Congo and Uganda to be a public health emergency of international concern.

The WHO said the outbreak, caused by the Bundibugyo strain of the virus, does not meet the criteria of a pandemic emergency but that countries sharing land borders with the DRC are at high risk for further spread.