Bundibugyo virus causing deadly Ebola outbreak in DRC and Uganda has no licensed vaccine (gavi.org)

• Rare Bundibugyo virus causes Ebola outbreak in DRC and Uganda.
• No licensed vaccine or treatment available; existing vaccines not specific.
• WHO declares PHEIC; 528 suspected cases and 132 deaths as of 18 May 2026.

"The rare Bundibugyo virus is driving an Ebola outbreak in eastern DRC that has crossed into Uganda. On 17 May 2026, WHO declared a PHEIC. As of 18 May, there were 528 suspected cases and 132 suspected deaths. No licensed vaccine or specific treatment exists. Existing Zaire ebolavirus vaccines may not be effective. Two vaccine candidates are in development but months away from clinical trials. Response currently relies on classical public health measures."