A health scare is unfolding in Siberia after the death of a laboratory worker at a Russian anti-plague research institute prompted authorities to place nearly 200 people under medical observation and quarantine parts of several medical facilities.
However, there is currently no official confirmation that a deadly virus leaked from the laboratory. Russian health authorities say the woman died from pneumonia of unknown origin and that testing has found no microorganisms connected to her professional work.
What Happened in Siberia?
The case centers on a 28-year-old laboratory worker, Darya Shipilova, who worked at the Irkutsk Anti-Plague Research Institute of Siberia and the Far East.
She became seriously ill and was hospitalized in late September before dying in early October. Her death prompted authorities to identify and monitor people who had been in contact with her. Reports indicate that roughly 200 people were placed under observation or quarantine.
Several medical facilities in the region also faced restrictions as officials investigated the situation.
Was There a Laboratory Leak?
That is one of the biggest unanswered questions surrounding the story.
Some Russian media reports have claimed that Shipilova may have accidentally broken a container containing plague bacteria while working at the institute. However, that allegation has not been officially confirmed.
Russia’s public health agency, Rospotrebnadzor, has said investigators found no evidence of an accident involving dangerous microorganisms at the institute. Officials have described Shipilova’s illness as pneumonia of unknown etiology and said testing did not identify pathogens associated with her work.
Why Are Authorities Taking Precautions?
The institute specializes in studying plague and other infectious diseases, so officials are taking the situation seriously while the investigation continues.
The World Health Organization said it is in contact with Russian authorities and that the contacts of the deceased worker have been identified and are being monitored. As of October 6, WHO said none of those contacts had shown symptoms of illness. The organization currently considers the public-health risk to the general population to be low.
That means the current situation does not amount to evidence of a widespread outbreak.
What About Pneumonic Plague?
Much of the concern comes from reports that the worker may have contracted pneumonic plague.
Pneumonic plague is a serious form of plague that affects the lungs and can spread between people through respiratory droplets. Unlike the historical image many people associate with the Black Death, modern plague infections can be treated with antibiotics when treatment begins promptly.