WHO recommends testing Ervebo vaccine in DRC trial
The World Health Organization has recommended prioritising testing of the Ervebo vaccine in a clinical trial in the Democratic Republic of the Congo, despite Ervebo being developed for the Zaire ebolavirus rather than the current Bundibugyo species. The outbreak, declared a public health emergency in May 2026, had 4,402 confirmed cases and 2,013 deaths by Aug 9, mostly in the DRC with small numbers in Uganda and France, and is growing at about 75–100 new cases per day. There is no licensed Bundibugyo vaccine; animal studies and human antibody data show cross-reactive responses to Bundibugyo, but real-world effectiveness is unknown, so trials could provide urgent evidence while purpose-built vaccines are still in early development.
WHO recommends testing Ervebo despite it being developed for a different Ebola species
Context
An Ebola outbreak was declared a public health emergency in May 2026. By Aug 9 there were…
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