Africa — 2026-08-28

Congo Begins Ebola Vaccinations to Fight Countrys Worst Outbreak on Record

BLUFDeploying Ervebo against a mismatched Bundibugyo strain means Congo's vaccination campaign is an unproven experiment running alongside, not ahead of, an accelerating 48-percent-fatality outbreak.

Congo launched an Ebola vaccination campaign in Kisangani, capital of Tshopo province, on Thursday, Health Minister Roger Kamba said, prioritizing health workers and other frontline responders with the Ervebo vaccine 12. As of Tuesday, the country had recorded 5,713 confirmed cases and 2,744 deaths across six provinces, an overall case fatality rate of about 48 percent. The WHO says the outbreak remains out of control and is on track to surpass the 2014-2016 West Africa outbreak that killed more than 11,000 people, mainly in Guinea, Liberia, and Sierra Leone, and remains the deadliest on record 12. More than 50,000 doses have been received of 70,000 the WHO approved for use in Congo, with 50,000 designated for frontline and health workers and 20,000 reserved for a clinical trial testing the vaccine's effect against the Bundibugyo strain driving the outbreak, according to the WHO and Congo's state news agency 12. Ervebo is approved against the Zaire ebolavirus strain, not Bundibugyo, and is being deployed under a compassionate-use program pending further study of its protection against the current strain 12. The campaign is expected to cover 14 health zones in Tshopo, Bas-Uele, and Haut-Uele provinces 12.

Analysis
Deploying Ervebo under compassionate use against Bundibugyo rather than its approved Zaire target turns the 14-zone campaign into a live efficacy trial alongside a control measure, with cross-strain protection unquantified as cases keep climbing. Associated Press is the sole primary source, with other outlets amplifying rather than independently confirming. The response has shifted since July's emergency declaration from case tracking and cross-border reporting toward active vaccine deployment as confirmed cases pass 5,700 and deaths top 2,700. The push may function primarily as a confidence measure for a health-worker force strained by strikes and insecurity, independent of unproven efficacy against this strain, and whether it slows transmission ahead of WHO's projected surpassing of the 2014-2016 toll hinges on data the 20,000-dose clinical trial has not yet produced.
4 sources
  1. Congo begins Ebola vaccinations to fight countrys worst outbreak on record - Washington Times
  2. Congo begins Ebola vaccinations to fight country's worst outbreak in history, health minister says - PBS NewsHour
  3. Congo begins Ebola vaccinations to fight country's worst outbreak on record, health minister says - Washington Post
  4. Congo begins Ebola vaccinations to fight country's worst outbreak on record, health minister says - Associated Press

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