A Plague-Institute Worker Died in Siberia. Her Mother Says “I Know the Truth.” Russia Cites Pneumonia of Unknown Cause.
Darya Shipilova, 28, a laboratory technician at the Irkutsk Anti-Plague Research Institute of Siberia and the Far East, was hospitalized on Sept. 29 and died early on Oct. 2, according to RFE/RL and wire reports. Russia’s health regulator, Rospotrebnadzor, says she died of “pneumonia of unknown etiology” and that testing found no link to the pathogens she handled.
Her mother, Svetlana Shipilova, a medical professional, rejects the account circulating about how her daughter was infected. “I know the truth,” she reportedly told the Russian outlet Glubina. She did not say in the quoted remarks what that truth is. The woman is named here as identified by her mother and Russian media; officials have not announced her name. Plague has not been confirmed, and the cause of death is still officially unexplained.
- 28years oldthe age of the lab technician, named by her mother and Russian media — NBC News
- Oct. 2date of deathearly morning, after hospitalization on Sept. 29 — RFE/RL
- ~200contacts observedplaced under medical observation, per Russian media citing officials — NBC News
- 60+staff confinedinstitute employees reportedly isolated since Oct. 2, per anonymous sources — RFE/RL
- 4infections foundtwo COVID-19 and two rhinovirus cases among contacts; no plague reported — Rospotrebnadzor via NBC News
The independent outlet Lyudi Baikala reported that Shipilova accidentally broke a test tube containing pneumonic-plague bacteria at work on Sept. 25. Russian authorities have not confirmed that. She was hospitalized on Sept. 29 and died on Oct. 2. Staff at the institute were then locked in for isolation, RFE/RL reports, citing an anonymous relative. The mayor of the Shelekhov district, Maksim Modin, said the inpatient facility where she was treated was closed for quarantine, NBC News reports.
Rospotrebnadzor announced the death on Oct. 4. Irkutsk Governor Igor Kobzev said on Oct. 5 that the situation was stable. On Oct. 6, the agency said contact testing found two COVID-19 and two rhinovirus cases and “no other infectious disease pathogens,” without mentioning plague, though NBC News notes only about 60 percent of the identified contacts had been tested at that point, and that its probe found “no incidents involving the handling of pathogenic microorganisms.”
Fox News Digital, relaying The Telegraph, reports that Svetlana Shipilova told Glubina she rejects the story about her daughter. She said breaking a test tube the way it has been described is impossible because the tubes are “well protected,” and that the people who believed it were “stupid acquaintances.” She also said: “They simply let my daughter die.”
Two things are worth holding apart. Her remarks reach us secondhand, and the quoted passages do not say what she believes happened or whom she blames. What they show is that the family rejects the test-tube account and wants answers, while the official explanation itself remains “pneumonia of unknown etiology.”
Kremlin spokesman Dmitry Peskov said on Oct. 7 that “the vast majority of what the media is reporting regarding this situation is false information,” per Al Jazeera, and pointed reporters to Rospotrebnadzor. On Oct. 5 he deferred questions about releasing lab results or whether an autopsy was done, NBC News reports. Neither has been made public in the reports we reviewed.
WHO Director-General Tedros Adhanom Ghebreyesus asked Russia to respond to reports of “a second employee with pneumonia of undetermined cause” and said, “We cannot ignore any reporting that comes.” Maria Van Kerkhove, WHO’s director of epidemic and pandemic management, said the causative agent is unknown and “We don’t understand how she was infected.”
“We need information in a timely way.”
Maria Van Kerkhove, WHO — via Al Jazeera, Oct. 8, 2026
Asked Wednesday whether a bioweapon could be the cause, President Donald Trump (R) said, “We do not think so,” and added that “Russia is not saying much either.” He said he had spoken with Vladimir Putin and expected an update. CDC Director Erica Schwartz, a Trump administration official, said the agency is working with Homeland Security, State and Defense, and that a CDC station at JFK Airport can screen travelers from the region. The CDC calls the U.S. risk “extremely low.” Secretary of State Marco Rubio said Monday that U.S.-Russia travel is very limited but that if such an outbreak “gets out, it could quickly spread,” and said he did not think it was cause for alarm.
RFE/RL notes the Soviet Union ran a large offensive biological-weapons program despite the 1972 Biological Weapons Convention, that an April 2025 State Department report assesses Russia still maintains one, and that Russia denies it. It also states there is no public evidence the Irkutsk lab was developing plague as a weapon. Rep. Don Bacon (R-NE) wrote that Russian claims about U.S.-backed bio labs in Ukraine were disinformation and that “it is Russia with the bio labs.” What is documented is a pattern of official reticence, not a weapons link.
Rospotrebnadzor — Russia’s public-health regulator; says no pathogen link was found.
Igor Kobzev — Irkutsk governor; said the situation is stable.
Dmitry Peskov — Kremlin spokesman; called most media reports false.
Tedros Adhanom Ghebreyesus — WHO Director-General; asked Russia to respond.
Donald Trump (R) — U.S. President; says a bioweapon is not thought to be the cause.
Established: a 28-year-old technician at a plague institute died Oct. 2; Russian media, citing officials, say about 200 contacts were observed; Russian testing reported COVID-19 and rhinovirus among them. Not established: the pathogen that killed her, whether any accident occurred at the lab, whether a second employee is ill, and whether an autopsy was done. Pneumonic plague spreads person to person through close contact, and modern antibiotics can be highly effective if started early, RFE/RL notes. There is no public confirmation of spread among Irkutsk residents.
A plague-institute worker is dead, her mother rejects the account of how she was infected, and Moscow has not released an autopsy or lab result. Plague is unconfirmed, a weapons link is unsupported, and the WHO is still waiting for an answer.
