Russia's plague institute just lost control of its own lab
1 hour ago · 5 October 2026Share
An FDA microbiologist working in a biosafety laboratory tests for high risk pathogens in food. File photo.The U.S. Food and Drug Administration · Public domain
A lab worker just died in Siberia.
Her name was Darya Shipilova. She was 28.
She worked at the Irkutsk Anti-Plague Research Institute. That's the one place in the region whose whole job is stopping plague outbreaks before they start.
She died three days ago, in intensive care, at Shelekhov District Hospital.
So what happened? The most widely reported account says she broke a test tube. Inside it was Yersinia pestis. That's the bacteria that causes plague. This happened ten days ago, while she was handling live samples at the institute.
Her condition got worse within days. She went to hospital. Doctors first thought it was Covid. Then rapid tests for dangerous infections changed everything. She was put on a ventilator. Her life could not be saved.
That's the version most outlets are reporting. But here's the thing. The full picture isn't settled at all.
Two other versions are floating around too. One says she picked it up on a work trip to Buryatia, a neighbouring republic near the Mongolian border. But the head of Buryatia, Alexey Tsydenov, says that's wrong. He says she never went there. A third, weaker account says she got sick after a trip to Thailand. Nobody has confirmed any of the three.
The hospital timeline doesn't match either. One account says she was rushed to hospital two days after the test tube broke, so around eight days ago. Another account, traced back to The Moscow Times, says she was admitted six days ago with severe pneumonia and died three days after that. Both can't be true. Nobody has explained the gap.
And then the diagnosis itself split straight down official lines.
Alexey Tsydenov posted that the death was caused by plague. Then he edited the post. Now it says she may have died of plague. Igor Kobzev, the governor of the Irkutsk region, wouldn't even say the word plague for the first day. He called it a particularly dangerous infection instead.
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The culturally vibrant city of Irkutsk, Russia, in Siberia is split by the Angara River, which flows south to Lake Baikal. File photo. NASA Johnson Space Center · Public domain
Then Anna Popova got involved. She runs Rospotrebnadzor, Russia's federal health and consumer watchdog. She flew to the region and chaired an emergency meeting with Kobzev.
A day later, Rospotrebnadzor said something very different. They said Shipilova died of pneumonia of unknown cause. They said more testing of her samples found no organisms linked to her work. And they said the whole situation in the region is stable.
So read that again. A regional governor says plague. The federal watchdog says pneumonia, cause unknown, and no trace of plague at all. Both are on the record. Neither one agrees with the other.
Now the numbers. 197 people have been identified as contacts. 189 of them are hospitalised right now. 114 are at one facility. 63 are at another. 12 were sent straight to the Anti-Plague Institute itself, for observation. Kobzev says none of them have shown symptoms. All have tested negative so far.
The hospital where Shipilova was treated has been put under quarantine. Some wards have stopped admissions and discharges altogether. Public events across the whole Irkutsk region have been cancelled.
A criminal investigation has now been opened. It's looking at possible health and safety violations that led to her death.
And that's the question underneath all of this. An institute built specifically to contain plague looks to have not contained it inside its own walls.
The last confirmed human plague case in Russia was in 2016.
This has even reached Washington. A US State Department official says America is aware of reports, and is monitoring the situation closely with the CDC and its other interagency partners.
So what don't we know? Almost everything that matters. How she was actually exposed. The real hospital timeline. And whether plague even killed her at all.
Russia's own officials have given three different answers to that last question. Right now, not one of them agrees with the other two.
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