Preventative measures, including quarantines and mask mandates, have been instituted in Russia's Irkutsk Oblast following the death of a laboratory worker from plague, according to Russian officials and media reports on October 4. Darya Shipilova, a lab technician at the Irkutsk Anti-Plague Research Institute in Shelekhov, reportedly contracted plague on October 2, a week after allegedly accidentally breaking a test tube containing the pathogen that causes pneumonic plague.
The director of the Irkutsk Aluminum Plant in Shelekhov, Artem Fominykh, announced a mask mandate for employees on October 4, urging them to seek medical attention if they experienced any illness symptoms. Multiple hospitals in the city of Irkutsk, including city hospitals No. 1, 3, and 10, and the Ivanovo-Matreninsk Children's Clinical Hospital, have also reportedly closed for a three-week quarantine, according to the outlet Lyudi Baikala.
Sources within the healthcare sector have indicated that doctors are discussing plague, though it is not officially mentioned in documents. Russian officials have been evasive about the cause of Shipilova's death and the potential risk of infection. The Baykalsk city administration initially warned residents to limit travel to Shelekhov due to the reported case but deleted the warning less than two hours later. Pro-Kremlin broadcaster REN TV also deleted Telegram posts reporting on hospitalizations.
Alexei Tsydenov, the governor of the neighboring Buryatia Republic, initially appeared to confirm Shipilova's death from plague on social media but later edited his post to add the word "possibly." Irkutsk Oblast Governor Igor Kobzev stated on October 2 that preventive measures were being carried out for an "particularly dangerous infection" and later commented on October 4 that the employee contracted "pneumonia of unknown origin," claiming no microorganisms linked to her duties were detected and that contacts were under medical observation.