 Ramba uchinyora ndima iyi - Chivako chacho chakavakwa muna 1982, makiromita gumi kubva kuStepnogorsk, muKazakhstan, pashure pengozi yakaitika paSverdlovsk. Yakavakwa kuti igadzire nokugadzira uwandu hukuru hweanthrax yakashandiswa sechombo, matani 300 pagore, kuitira kuti izadze nzvimbo isina kugadzirwa yakaparirwa nokuvharwa kunobvira kwechivako chavo cheSverdlovsk. Utungamiriri hweSoviet hwakaisa Colonel Kanatjan Alibekov aka. Ken Alibek aitungamirira hwaro kusvikira aendeswa kuMoscow muna 1987. 