Laboratory Worker Dies from Severe Pneumonia in Russia's Irkutsk Antiplague Research Institute of Siberia and Far East

Reports have emerged of a laboratory worker dying from severe pneumonia at an institute in Russia specializing in infectious diseases such as plague.

The incident has sparked widespread speculation on social media platforms, with some users drawing comparisons to the COVID-19 pandemic and others making unsubstantiated claims about the cause of death.

A viral post on X claimed that a lab technician at the Irkutsk Antiplague Research Institute of Siberia and Far East had broken a flask containing the plague virus, resulting in infection and subsequent death. The post included a photo allegedly showing the deceased employee and garnered over 320,000 views before spreading across various social media platforms.

However, independent evidence supporting the claim of a lab leak is lacking, with some questioning the validity of the information shared online.

Russia's public health authority, Rospotrebnadzor, has launched two commissions to investigate biosafety procedures at the institute and found no signs of an accident involving pathogenic microorganisms.

The Irkutsk Antiplague Research Institute's safety protocols have been called into question after a laboratory worker was hospitalized with severe respiratory symptoms. Some experts point to the use of glassware in high-containment laboratories as a potential risk factor for accidents.

Highly pathogenic microorganisms are handled at the institute, including strains classified in Russia's highest pathogenicity groups. These include Yersinia pestis, the bacterium responsible for causing plague. The institute's work with these pathogens raises questions about its laboratory safety procedures.

The biosafety level of the institute's laboratories has not been independently verified by DW. Biosafety levels are an international classification system that describes the containment measures required when handling dangerous pathogens. The most hazardous agents are classified as BSL-4, but it is unclear what level the Irkutsk institute operates at.

DW attempted to contact the Irkutsk Antiplague Research Institute for comment on its laboratory safety procedures and the alleged incident involving the hospitalized worker. However, no response was received by the time of publication.

The World Health Organization (WHO) did update its plague fact sheet around the same time as the hospitalization of the Russian laboratory worker. However, there is currently no evidence to suggest that these two events are linked.

A recent update to the World Health Organization's (WHO) plague fact sheet has been seized upon by social media accounts spreading misinformation about a potential outbreak in Russia.

The WHO's fact sheet was updated on September 29, coinciding with the release of global surveillance data covering 2019 to 2025. This data was published in the latest edition of the Weekly Epidemiological Record, released just four days earlier on September 25.

While the timing of these updates may be seen as suspicious, there is currently no evidence to suggest that they are linked to any real-world events or outbreaks. The previous version of the WHO's plague fact sheet, which was archived in July 2022, provides a more nuanced understanding of the situation.

Social media accounts have been quick to capitalize on the perceived crisis, with some changing their names and profiles to appear as local or specialist sources. One such account, created in May and based in Australia, now claims to be reporting live from Irkutsk, but its profile still indicates a foreign origin.

Old videos are being repurposed on social media platforms, further adding to the disinformation surrounding the plague. A video posted on X features a user claiming that the plague has spread beyond the initial reported area in Russia, with a caption reading "The plague marches across Russia. God has heard our prayers!"

The video circulating online claiming to show a plague outbreak in Irkutsk has been found to be old and unrelated to the current situation. A reverse image search revealed that the video was initially posted on August 31 this year, supposedly showing Kabardino-Balkaria, a tourist destination over 6,000 kilometers away from Irkutsk.

The misleading video has gained significant traction, with more than 1.7 million views on Instagram and also being shared on Telegram. This comes as the Russian news agency TASS reported on August 31 that plague pathogen was detected in local squirrels, prompting the area to be closed to tourists.

A closer examination of the video reveals a specific location mentioned by a person speaking in Russian: "It's at the turnoff from the paved road toward Serebryany Istochnik". This refers to a spring located in the Dzhily-Su area in Kabardino-Balkaria, which is approximately 3,700 miles away from Irkutsk.

The investigation into the situation in the Irkutsk region continues, with no confirmed reports of a plague outbreak in Russia. Precautionary measures have been put in place following the death of a laboratory worker, while tests are reportedly being carried out to determine the cause of the incident.