President Donald Trump has addressed growing international concern over the death of a 28-year-old laboratory worker at Russia’s Irkutsk Anti-Plague Research Institute in Siberia. The worker, Darya Shipilova, died on October 2 after developing severe pneumonia of unknown origin. Her death has triggered speculation about a possible pneumonic plague infection, although Russian authorities have not confirmed any connection to plague or the pathogens handled at the institute.
Trump said U.S. officials do not currently believe the incident involved a bioweapon. He has nevertheless called for more information from Moscow and said the United States is prepared to assist if necessary. U.S. officials, including agencies responsible for public health and national security, are monitoring developments while seeking additional details about the case.
The World Health Organization has also pressed Russia for greater transparency, saying it does not yet know what caused the worker’s illness or death. WHO officials have requested laboratory test results, information about the preventive measures taken, and clarification of reports that another employee may have developed unexplained pneumonia.
Russia maintains that there is no wider epidemic risk. Its health authorities say extensive testing found no dangerous pathogens among the worker’s contacts, and thousands of tests have reportedly been conducted as precautionary measures. WHO currently considers the broader public-health risk low, but says more information is needed.
The case remains unresolved, with the central questions involving the exact cause of death, the circumstances surrounding the illness, and whether any laboratory exposure occurred. For now, there is no confirmed evidence of a pneumonic plague outbreak or bioweapon involvement.
