Mass quarantine issued in Russia after unexplained death of plague researcher

A mass quarantine has been implemented in Russia following the sudden death of an infectious disease researcher at the Irkutsk Anti-Plague Research Institute in Shelekhov, according to initial reports. Roughly 200 individuals are currently under medical observation, and several hospitals have been placed under quarantine. Dozens of people are in isolation as authorities investigate the circumstances surrounding the researcher's death.

The researcher in question, Darya Shipilova, reportedly passed away last week from pneumonia of unknown cause, as stated by the Russian public health agency Rospotrebnadzor. However, unconfirmed reports have suggested that Shipilova may have accidentally broken a test tube containing the plague pathogen, Yersinia pestis, on September 25, which led to her subsequent illness and death. The hospitalization occurred on September 29, and she ultimately succumbed to her condition overnight between October 1 and October 2.

Initially, the head of the Russian region neighboring Irkutsk, Alexey Tsydenov, claimed that Shipilova had died of plague. However, he later revised his statement, stating that her death might have been caused by the disease.