Ervebo Vaccine — Ebola Vaccine, Technology & Current Relevance


What is Ervebo?

Ervebo is a vaccine used for prevention of disease caused by Zaire ebolavirus.

Vaccine Technology

  • Uses a recombinant vesicular stomatitis virus (rVSV) platform.

  • Genetically modified virus expresses Ebola glycoprotein.

  • Live attenuated vaccine platform.

  • Administered as a single dose for its licensed indication.

WHO lists Ervebo as the licensed and WHO-prequalified vaccine for prevention of Ebola virus disease caused by Zaire ebolavirus.

Current Important Point

In 2026, WHO has specifically noted that there is insufficient evidence to recommend Ervebo for Bundibugyo virus disease.

Prelims Trap

Ervebo protects against Zaire ebolavirus, not automatically every Ebola-virus species.