The World Health Organization has assessed the risk of a plague epidemic in Russia as low following the death of a laboratory technician at a plague research institute in Siberia, saying it has detected no sign of any further outbreak.
Darya Shipilova, who was 28, died last week, two days after falling ill. Russian media reports suggested she may have become infected after an accident at her workplace, where dangerous pathogens are kept and studied.
The WHO's assessment offers reassurance that the incident has not spread beyond the single case. The agency said it had found no evidence of additional infections linked to the laboratory or the surrounding community.
Plague is caused by the bacterium Yersinia pestis and is treatable with antibiotics if detected early. It remains endemic in some rodent populations in parts of Asia, Africa and the Americas, and research facilities that handle the pathogen operate under strict biosafety controls.
The institute where Shipilova worked is one of the specialised centres in Siberia that store and study dangerous pathogens, including the bacterium responsible for plague. Such laboratories are designed with multiple layers of containment, and accidents are rare but not unprecedented.
Russian authorities have not released a detailed account of the circumstances surrounding the infection. Media reports pointing to a possible workplace accident have not been formally confirmed.
The WHO's low-risk determination is based on the information available so far. The agency continues to monitor the situation, but it has not called for any travel or trade restrictions in connection with the case.
For the public, health officials say the risk remains minimal. Plague does not spread easily between people under ordinary conditions, and standard public health measures are effective at containing isolated cases.
The death of a young researcher has nonetheless drawn attention to the hazards faced by laboratory staff who work with some of the world's most dangerous infectious agents. Biosafety protocols at such facilities are subject to international guidelines, and incidents are investigated to prevent recurrence.
No further details about Shipilova's illness or the timeline of her treatment have been made public. The WHO said it would continue to work with Russian health authorities as needed.
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