The Democratic Republic of Congo has launched a vaccination campaign for frontline health workers in Bunia, the capital of Ituri province in the country's northeast, as the country battles what officials describe as the fastest-growing Ebola outbreak in history. The rollout began on Saturday, with some 50,000 health and other frontline staff set to receive the Ervebo vaccine — a jab licensed for use against the more common Zaire strain of Ebola, not the Bundibugyo virus responsible for the current outbreak.
The campaign, backed by the World Health Organization (WHO) and Doctors Without Borders (MSF), is concentrated in Ituri province and North Kivu, where cases have been rising sharply. Ituri's military governor, Major-General Gaby Kasongo Mulumba, underscored the urgency: "Our collective duty is to protect life. Launching this vaccination drive for frontline staff in Ituri is not an arbitrary choice, as these workers are particularly exposed and deeply involved in the response." Some 20,000 of the recipients will be enrolled in a clinical trial lasting up to one year to assess whether Ervebo offers meaningful protection against the Bundibugyo strain, for which no licensed vaccine or proven treatment currently exists.
The vaccine is being administered under a compassionate-use programme — a regulatory mechanism that permits an unapproved medical product to be deployed in life-threatening situations. Early data from animal trials has led WHO experts to suggest the vaccine may offer some level of cross-protection against Bundibugyo, though significant uncertainty remains. "We don't know to what degree it might be effective against the Bundibugyo strain," acknowledged Steve Ahuka, a Congolese health official leading the outbreak response. Health workers on the ground expressed a mixture of resolve and pragmatism. "We healthcare workers don't really have a choice. We are going to receive it," said Dr. Jeannot Elua at a facility in Bunia.
As of Saturday, the outbreak had recorded 7,541 confirmed cases and at least 3,639 deaths since May, making it the deadliest of Congo's 17 recorded Ebola outbreaks. The spread is being driven by a combination of armed insecurity, large-scale population displacement, a health workers' strike and intense movement between communities. While WHO officials have cited "encouraging signs" that transmission may be slowing, MSF cautioned that there is no clear evidence the epidemic is coming under control. The WHO has warned the outbreak is on track to surpass the 2014–2016 West Africa epidemic — the deadliest on record, which killed more than 11,000 people across Guinea, Liberia and Sierra Leone.
The stakes of the vaccination campaign extend well beyond protecting individual health workers. Frontline staff are both the most exposed to the virus and the most essential to containing it, meaning that protecting them is a prerequisite for any sustained public health response. With 70,000 doses of Ervebo approved for use in the country and the one-year clinical trial now under way, the results could shape the global response to Bundibugyo outbreaks for years to come.