Russia yet to reveal cause of plague researcher’s death amid fears of exposure

Russian authorities have yet to establish publicly what caused the death of a researcher at a Siberian infectious disease institute, raising concerns over transparency and potential public health risks.

According to The New York Times, Darya Shipilova, 28, died on October 2 after developing severe pneumonia while working at the Irkutsk Anti-Plague Research Institute. Reports suggested possible exposure to plague bacteria, but Russian officials have not confirmed the cause.

The World Health Organization has requested further information from Moscow, including clarification about reports of another employee with unexplained pneumonia.

Russian health authorities maintain that there is no risk of an epidemic. They said nearly 5,000 laboratory tests found no dangerous pathogens among contacts of the deceased researcher, allowing most people placed in precautionary quarantine to be released.

However, the lack of a definitive explanation has prompted questions from international health officials about biosafety procedures and information-sharing.

The WHO has stressed that timely, transparent reporting is essential to assess potential risks accurately.