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Pneumonic plague is one kind of plague that is caused by the bacteria Yersinia pestis. Symptoms can include fever, headache, weakness, breathing problems, chest pain and cough. Representational image/Pixabay
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Firstpost•05-10-2026, 10:31
Russia on High Alert After Scientist Dies of Suspected Plague; 200 Quarantined
  • •A 28-year-old laboratory worker in Siberia died of a suspected plague infection, prompting Russia to go on high alert.
  • •Daria Shipilova, working at the Irkutsk Anti-Plague Institute, allegedly broke a test tube containing the pneumonic plague pathogen on September 25.
  • •Around 200 people who came into contact with the scientist have been placed under medical screening and quarantine.
  • •Authorities have canceled public events in Irkutsk and launched a criminal investigation into potential health safety violations.
  • •Pneumonic plague, caused by the Yersinia pestis bacterium, is highly virulent and can be fatal if not treated with antibiotics within 24 hours of symptom onset.

Key Questions Answered

A 28-year-old laboratory worker named Daria Shipilova died on October 1 after allegedly breaking a test tube containing the pneumonic plague pathogen while working at the Irkutsk Anti-Plague Institute in Siberia on September 25.

Pneumonic plague is the most virulent form of the disease and can be transmitted through respiratory particles. Its symptoms include a sudden onset of fever, headache, chills, weakness, coughing, and breathing issues, which can appear within 1 to 3 days.

Authorities placed approximately 200 people who came into contact with the worker under medical screening and quarantine, cancelled all planned public events in Irkutsk, and launched a criminal investigation into potential health safety violations.

Scientist's Plague Death Puts Russia on Alert: Understanding the Disease