Russian researcher who studied plague died of mysterious illness: What to know

Brady KnoxOctober 5, 2026

A 28-year-old Russian lab technician at the Anti-Plague Institute in Siberia died from an unspecified form of pneumonia, prompting a public health lockdown that included quarantining 200 individuals. She was hospitalized on Tuesday, placed on a ventilator, and passed away two days later. The Russian health agency Rospotrebnadzor classified her death as caused by “pneumonia of unknown etiology” after an investigation. Russian officials, including Kremlin spokesman Dmitri Peskov, urged the public to remain calm and rely on official sources for details. Additionally, the article features promotional content for the Washington Examiner, encouraging subscriptions for full access to news and analysis, with options for both print and digital subscribers.

A 28-year-old lab technician in Russia’s far east working on research at the country’s Anti-Plague Institute died of “pneumonia of unknown etiology,” on Thursday, triggering a public health lockdown involving the quarantining of 200 other people.

Daria Shipilova, 28, was hospitalized and put on a ventilator on Tuesday, then died two days later. The research facility is located within Irkutsk Oblast, in Siberia. The diagnosis of “pneumonia of unknown etiology” was given by Rospotrebnadzor, Russia’s public health and consumer protection agency, in the conclusion of its investigation by a special expert commission. Kremlin spokesman Dmitri Peskov urged the public to keep calm and only listen to professionals from the group regarding the situation, rather than “rumors and speculation.”