A laboratory worker, Darya Shipilova, aged 28, died on October 2 at a plague research institute in Siberia, sparking public health concerns and a quarantine of about 200 people. Officials have not linked her death to her work or to the plague. She reportedly died from an unknown type of pneumonia, and no pathogens related to plague were found among those who came into contact with her. Various unverified stories circulated about the cause of her illness, including dropping a test tube of live bacteria, traveling to Thailand, or visiting an area near Mongolia, but these theories are not supported by evidence.
There is no confirmation that she died from the plague, despite some comments suggesting otherwise. Local health authorities stated there was no indication of a “dangerous diagnosis,” and 60% of those quarantined have already been released. The plague is caused by the bacterium Yersinia pestis, primarily affecting small animals and fleas, and can also infect humans. Historically, it has caused significant outbreaks, including the Black Death. The mortality rate varies from 30% to 100% if untreated, but it can be effectively treated with antibiotics if caught early.
Plague is endemic in various regions, including Africa, the former Soviet Union, and parts of Asia, with recent cases primarily reported from the Democratic Republic of Congo and Madagascar. Although Siberia is known for its historical outbreaks, human cases are rare in Russia. In response to Shipilova’s death, figures like US President Donald Trump expressed concern, with offers of assistance, while neighboring countries implemented border precautions.
The Irkutsk Anti-Plague Research Institute, established in 1934, aims to control plague outbreaks and has historically dealt with other pathogens like cholera and anthrax. Plague exists in three forms: pneumonic, bubonic, and septicemic, each affecting different body areas. Symptoms usually begin with flu-like signs after an incubation period of one to seven days. The heightened scrutiny on this incident is partly due to pandemic-related anxieties about emerging illnesses and potential laboratory accidents, although experts advise caution, emphasizing that only one case has been reported and there is no evidence linking the worker’s death to the plague.
With information from Reuters

