The accidental anthrax release at Sverdlovsk was the first major evidence that the Soviet Union was developing offensive biological weapons.
Key Facts
- Date of release
- 2 April 1979
- Confirmed minimum deaths
- 68 people
- Causative agent
- Bacillus anthracis (anthrax spores)
- Source facility
- Soviet Armed Forces research facility
- Soviet cover story
- Tainted meat consumption and butcher exposure
Location
Cause → Event → Consequence
The Soviet Union had secretly developed an offensive biological weapons programme in violation of international agreements. A military research facility in Sverdlovsk was conducting work with Bacillus anthracis, the bacterium responsible for anthrax, and on 2 April 1979 an accidental release of spores occurred, exposing the surrounding population.
Anthrax spores escaped from the Soviet Armed Forces research facility in Sverdlovsk, triggering an outbreak of inhalation anthrax among residents and workers in the area. At least 68 people died, though the true death toll remains unknown. Soviet authorities denied the real cause for years, attributing deaths to contaminated meat in the region.
The incident became the first significant indication to the Western world that the Soviet Union was pursuing large-scale production of biological weapons. Soviet denial persisted until the early 1990s, when Russian President Boris Yeltsin acknowledged the military origin of the outbreak, exposing the extent of the Soviet bioweapons programme.