A laboratory worker in Siberia is dead, nearly 200 possible contacts have come under medical observation, and reports of a broken test tube have raised fears of plague. Russian health authorities have not confirmed the diagnosis, but the White House is monitoring the situation, according to Axios.
Daria Shipilova worked at the Irkutsk anti-plague institute, where she reportedly broke a test tube containing live bacteria while collecting samples. Local reports identified the suspected pathogen as the bacterium responsible for pneumonic plague, which affects the lungs. She later entered a hospital with severe pneumonia and died.
Authorities responded by placing the Shelekhov district hospital under quarantine and identifying people who might have been exposed. Reporting from The Moscow Times puts the number at at least 197 possible contacts. Irkutsk Governor Igor Kobzev said on Friday that those under observation showed no symptoms and their laboratory tests were negative.
The cause of Shipilova’s illness remains unresolved. Russia’s public health agency described it as pneumonia of unknown cause and said testing found no microorganisms associated with her work. It also denied having a record of an accident involving pathogens at the institute, conflicting with the reported account of the broken sample tube.
The suspected form of the disease makes this especially concerning. Pneumonic plague can spread between people through respiratory droplets, typically during direct, close contact, according to the CDC. That explains why medical staff and others who encountered the patient would require attention, even before investigators establish a diagnosis.
Plague also has not disappeared into the history books. The bacteria still circulate naturally in certain regions, including parts of the western United States. However, antibiotics can cure the disease when treatment begins promptly, giving modern doctors options that people facing the Black Death never had.
A fatal illness at a facility studying dangerous pathogens warrants scrutiny, particularly when accounts of a possible exposure conflict. If investigators confirm a laboratory accident, they will need to explain how it happened and whether safety procedures failed. For now, the death and precautionary quarantines are serious, but they do not establish a spreading plague outbreak or a threat to Americans.
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