The World Health Organization is pressing Russia for more information after a 28-year-old laboratory worker in Siberia died from severe pneumonia of unknown origin, fueling concerns about a possible pneumonic plague case.
The woman, identified as Darya Shipilova, worked at the Irkutsk Anti-Plague Research Institute and died on October 2. Russian health authorities say extensive testing found no evidence of plague or other dangerous pathogens linked to her work. Nearly 200 people were placed under observation or quarantine, but no plague infections have been detected among her contacts.
The WHO says it still does not know what caused the illness and has asked Russia to provide additional information. The agency is also seeking clarification over reports that a second employee developed pneumonia of undetermined cause. Russia has dismissed reports of a second plague case as false information.
No Confirmed Outbreak
Despite the international attention, there is currently no confirmed pneumonic plague outbreak in Russia. U.S. health officials have also assessed the risk to the United States as extremely low.
The situation is attracting concern largely because of the worker's connection to a facility that studies dangerous pathogens and because of limited information about the circumstances surrounding her death.
For now, health authorities are monitoring the situation while the WHO seeks clearer answers from Moscow. The key question remains what caused the pneumonia and whether there is any connection to the research facility.
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