Sverdlovsk anthrax leak (1979)
Anthrax spores were accidentally released from a Soviet military microbiology facility in Sverdlovsk (now Yekaterinburg). At least 66 people died. Soviet authorities initially blamed contaminated meat.
Soviet officials denied a lab accident for years.
In 1992, President Boris Yeltsin acknowledged the military accident. The case became a symbol of Soviet secrecy about lab accidents.
The current case involves a Russian lab studying dangerous pathogens, and officials are again giving incomplete explanations. The Sverdlovsk precedent shows how lab accidents in Russia have been handled historically.
