
The death of a 28-year-old laboratory assistant in Siberia has caused concern, as she worked at the Anti-Plague Research Institute in Irkutsk and was hospitalized with severe pneumonia.
Around 200 people who may have had contact with him have been placed under medical observation, while authorities have taken epidemiological measures in the area.
According to Russian media reports, the woman, identified as Daria Sipilova, passed away in the early hours of October 2, after being admitted to the Shelekhov regional hospital on September 29 with severe pulmonary problems.
It was initially reported that she may have been infected with pneumonic plague, and some media outlets and Telegram channels even claimed that while working in the laboratory, a test tube containing the bacterium Yersinia pestis, the cause of the plague, had broken. However, these claims have not been officially confirmed.
Rospotrebnadzor, the Russian consumer protection and public health authority, stated that Sipilova’s diagnosis was “pneumonia of unspecified etiology.” According to the authorities, tests did not detect microorganisms related to her professional activity in the patient’s biological materials and no incidents were noted during work with pathogens at the institute.
Despite this, about 200 people have been placed under medical observation, while the hospital in Shelekhov, where the woman died, has been included in quarantine measures. Authorities have stated that the epidemiological situation in the region is stable and that no other cases of plague have been confirmed so far.
Sipilova worked at the Institute for Anti-Plague Research in Siberia and the Far East, an institution specializing in the study and monitoring of the disease.
After her health deteriorated, she was hospitalized on September 29 and intubated. She passed away on October 2.
Her death sparked a wave of reports of a possible laboratory accident and pneumonic plague infection. But Russian authorities have denied these versions, insisting that the cause of death remains pneumonia of undetermined origin.
Meanwhile, the head of Rospotrebnadzor, Anna Popova, traveled to Siberia for an urgent meeting with local authorities and the sanitary-epidemiological commission.
Pneumonic plague is the form of plague that can be transmitted from person to person through respiratory droplets. However, there is no official evidence that this occurred in the Irkutsk case.
Reuters reported that the World Health Organization currently assesses the risk to public health as low, while authorities have been tracing people who had contact with the lab worker.
It is precisely the lack of official confirmation of the plague, at a time when around 200 people are under observation, that has fueled speculation in Russian media and social networks.
For now, the main question remains whether any more cases will be confirmed. So far, Russian authorities say there are no new cases of the plague and that the situation is under control.