DRC Ebola Outbreak Raises Vaccine Questions

The DRC's 2026 Ebola outbreak — 3,973 cases, 1,801 deaths as of 4 August across 51 health zones — is caused by a virus type called Bundibugyo, not the Zaire type behind most DRC outbreaks. Approved vaccines were tested against Zaire, so their protection against Bundibugyo is uncertain. This unfolds in a conflict zone with spread into Uganda.