Mass quarantine issued in Russia after unexplained death of plague researcher
An infectious disease researcher's death in Russia has triggered hospital quarantines and medical observation for roughly 200 people. Darya Shipilova worked at the Irkutsk Anti-Plague Research Institute of Siberia in Shelekhov.
An infectious disease researcher's death in Russia has triggered hospital quarantines and medical observation for roughly 200 people. Darya Shipilova worked at the Irkutsk Anti-Plague Research Institute of Siberia in Shelekhov. She died between October 1 and October 2, 2026, after entering a hospital on September 29 with severe pneumonia. Unconfirmed reports claim she broke a test tube containing the plague pathogen *Yersinia pestis* on September 25.
Regional governor Igor Kobzev noted a suspected case of a dangerous infection, while the Russian public health agency Rospotrebnadzor stated she died of pneumonia of an unknown cause and described the regional epidemiological situation as stable. Rospotrebnadzor added that no microorganisms tied to her duties were found in her samples.
Officials and agencies, including the US State Department, the European Centre for Disease Prevention and Control, and Kyrgyzstan, are closely monitoring the situation.
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Original publication: 5 October 2026 20:42
