Congo Launches Ebola Shot Campaign for Frontline Staff in Outbreak Epicenter
Authorities in the Democratic Republic of Congo started vaccinating healthcare workers in Bunia, the epicenter of the country's largest Ebola outbreak, using the Ervebo vaccine despite it targeting a different viral strain. The campaign aims to cover 20,000 frontline workers over six to nine months in Ituri and North Kivu provinces, as the current Bundibugyo virus outbreak has no licensed vaccine or treatment. The outbreak has recorded over 7,500 confirmed cases and more than 3,600 deaths, with transmission fueled by insecurity, displacement, and a health workers' strike.
The Ervebo vaccine being deployed was originally licensed for the Zaire Ebola strain, not the Bundibugyo strain driving the current outbreak. Authorities approved 70,000 doses, with roughly 50,000 earmarked for frontline workers and 20,000 reserved for a clinical trial investigating potential cross-protection against Bundibugyo, since the two viruses are related. The vaccine is administered under a compassionate-use framework.
This marks Congo's 17th Ebola outbreak and its deadliest, with cases concentrated in Ituri province. A prior Ervebo rollout occurred in Kisangani, covering 14 health zones across Tshopo, Bas-Uele, and Haut-Uele. Some workers who received Ervebo during the 10th outbreak now question whether repeat vaccination is necessary, while others view it as mandatory protection given their exposure.
This vaccination effort could stabilize a fragile healthcare workforce in a region already strained by insecurity, displacement, and a workers' strike. Protecting frontline staff may preserve the response capacity needed to contain transmission, though the vaccine's efficacy against Bundibugyo remains unproven. Communities may gain cautious confidence if health workers remain healthy, but uncertainty about repeat dosing and cross-strain protection could affect trust in the campaign's long-term effectiveness.