Archive · 7 Oct 2026
WHO Seeks Clarity on Russian Lab Worker’s Pneumonia Death
Darya Shipilova worked at a research institute in Siberia and became very sick with pneumonia.
She was 28 and died on October 2.
Some reports suggested she might have been exposed to the germ that causes plague, but this has not been established.
Russia told the World Health Organization that no recent plague cases had been recorded in the region.
Russian authorities said tests did not find germs linked to her work with dangerous pathogens.
They also said people who had contact with her were checked and watched by medical staff.
The WHO says it wants more information about what caused her illness.
It also asked Russia to clarify reports that another employee had pneumonia.
The cause of Shipilova’s illness and death has not been conclusively established.
Darya Shipilova, a 28-year-old worker at a Siberian anti-plague research institute, died on October 2 after developing severe pneumonia.
Russia told the World Health Organization that no plague cases had recently been registered in Irkutsk oblast.
Russian authorities described the cause as pneumonia of unknown origin and said laboratory analysis found no microorganisms associated with Shipilova’s work.
Authorities said they investigated, introduced precautionary measures, and tested and monitored identified contacts; the WHO reported no high-threat pathogens were found among them.
The WHO requested further information about the illness and media reports of a second employee with pneumonia of undetermined cause; the cause of Shipilova’s illness remains unclear.
- Who
- Darya Shipilova, a 28-year-old employee of the Irkutsk Anti-Plague Research Institute; Russian health authorities and the WHO.
- What
- Shipilova died after severe pneumonia, and the WHO is seeking more information about the illness and a reported second case.
- When
- Shipilova died on October 2; Russia responded to the WHO’s information request on October 6.
- Where
- Irkutsk oblast, Siberia, Russia.
- Why
- The illness’s cause remains unclear, and the WHO is seeking information to assess the reports and the public health measures.
WHO Seeks Further Information
Russia Says No Plague Was Recorded
Cause of Shipilova’s illness
WHO Seeks Further Information
The WHO requested more information to clarify the cause of the severe pneumonia and identify the pathogen that prompted public health measures.
Russia Says No Plague Was Recorded
Russian authorities described the pneumonia as being of unknown origin and said laboratory analysis found no microorganisms associated with Shipilova’s work handling dangerous pathogens.
Possible laboratory exposure
WHO Seeks Further Information
Reports and online speculation raised the possibility of exposure to the plague bacterium, but the WHO has requested further information rather than confirming that account.
Russia Says No Plague Was Recorded
Russian authorities rejected the laboratory-accident theory and said no recent plague cases had been recorded in the region.
Possible second employee
WHO Seeks Further Information
The WHO asked Russia to clarify media reports of a second employee with pneumonia of undetermined cause.
Russia Says No Plague Was Recorded
The articles do not report a Russian confirmation of a second case; Russia said no plague cases had recently been registered.
- Deceased worker
- Darya Shipilova, 28
- Institute
- Irkutsk Anti-Plague Research Institute of Siberia and the Far East
- Date of death
- October 2
- Reported illness
- Severe pneumonia; Russian authorities classified its cause as unknown
- Russia’s statement
- No recent plague cases had been registered in Irkutsk oblast
- Contact monitoring
- Authorities said identified contacts were tested and observed; the WHO said no high-threat pathogens were detected among them
- WHO request
- Further information on the illness, the pathogen behind public health measures, and media reports of a second employee with pneumonia
