Plague Research Institute
Authority: Investigations in Irkutsk show no cases of plague
Updated on October 7, 2026 – 2:53 p.mReading time: 2 minutes
Almost 5,000 tests, but no dangerous pathogens found: Russian authorities provide information about disease prevention after the death in Siberia.
After the death of a scientist at a plague research center in Siberia The Russian authorities have almost completed the screening of possible contact persons. Rospotrebnadzor, the agency responsible for disease control, said 90 percent of the people under observation had been examined.
No health impairments related to infectious diseases were found, the state news agency Tass quoted from the statement. “The results of nearly 5,000 laboratory tests have not shown any dangerous pathogenic (disease-causing) microorganisms,” it said.
It was not stated how many possible contacts of the deceased scientist were investigated. Numbers of up to 200 people were mentioned in press reports.
The authority remains firm: There was no laboratory accident
The agency reiterated its statement on Sunday that there was no laboratory accident at the Plague Control Institute in Irkutsk. There is no risk of an epidemic for the region around 4,200 kilometers east of Moscowwas also emphasized. Russia Rospotrebnadzor announced that it had informed the World Health Organization (WHO) about the incident in accordance with the rules.
The 28-year-old woman died last Friday. The official cause of death is one pneumonia of unknown origin. The authorities have not yet provided any further details. However, it was said that the woman was not infected with the plague pathogens with which she had to deal with at work.
Kremlin calls media reports incorrect
However, the unclear case of a possible infection with pneumonic plague is causing concern abroad. The USA and the WHO urge for further information. Meanwhile, Kremlin spokesman Dmitry Peskov said in Moscow that people should stick to the official information from Rospotrebnadzor. Most of the information about Irkutsk in the media is false.