Official says WHO doesn’t know exactly how lab worker in Russia died in plague case
The World Health Organization is seeking more information from Russia regarding the mysterious death of a lab worker at a Siberian plague research institute. Russian authorities have attributed the death to pneumonia, but the WHO remains concerned due to the lack of clarity surrounding the cause of infection.
Why it matters
The incident raises international biosafety concerns and highlights potential transparency issues regarding research facilities handling dangerous pathogens.
A top official with the World Health Organisation said Wednesday (October 7, 2026) the UN health agency doesn’t know how a lab worker in Siberia died amid concerns about plague, and she urged Russia to provide more information.
Maria Van Kerkhove, WHO director of Epidemic and Pandemic Management, said the agency doesn’t know what the “causative agent” was behind the woman’s October 2 death, and “this is why we need more information”.
In its tersely worded statements, Russia’s public health watchdog, Rospotrebnadzor, does not link the case to pneumonic plague, saying only that “extensive” testing found no evidence the lab worker’s illness was caused by any of the pathogens she worked with at the Irkutsk Anti-Plague Research Institute of Siberia and the Far East.
Also covering this story
15 other newsrooms covered this event. We read each version separately.
Trump Offers Help To Russia After Suspected Plague Death, Quarantines
Trump says call scheduled with Putin on possible pneumonic plague case in Russia
Everything we know about the suspected plague case in Russia so far
US 'watching closely' after plague researcher dies in Russia, Rubio says
Did a Russian lab worker die from pneumonic plague? What we know - and don't know
Dozens quarantined in Siberia after plague institute lab worker dies
'Will call Putin over pneumonic plague,' says Trump - what is happening in Russia?
Plague epidemic risk in Russia low after death of lab technician, WHO says
How Russia and the world are responding to possible case of plague
How Russia and the world are responding to a possible case of pneumonic plague after lab worker dies - AP News
US 'watching closely' after plague researcher dies in Russia
Trump offers U.S. help to Russia after plague death; WHO assesses the situation as low risk
Trump to speak to Putin on plague as US, UN urge transparency
WHO Comments On Russian Plague Lab Death As Trump Expresses Concern - Forbes
What is plague and how dangerous is it?
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in