
DR Congo Launches Trial for Ervebo Vaccine Against Rare Bundibugyo Ebola Strain
The Democratic Republic of the Congo (DRC) is beginning a clinical trial to test the Ervebo vaccine against the Bundibugyo strain of Ebola, which is causing the country's deadliest outbreak. The World Health Organization (WHO) allocated 70,000 doses, with 20,000 reserved for the trial and 50,000 for frontline health workers. While Ervebo is proven effective against the Zaire strain, its efficacy against Bundibugyo is unknown. The outbreak, declared in May 2026, has killed nearly 2,500 people and is spreading faster than the response can manage. Gavi is funding the shipment with $7 million, while the M23 rebel group has imposed travel restrictions in the east to curb transmission.













