New Delhi: A Soviet-era research institute in Siberia is suddenly under international scrutiny after a 28-year-old employee died following severe pneumonia, prompting the isolation of dozens of colleagues and medical observation of people who had been in contact with her.
The Irkutsk Anti-Plague Research Institute of Siberia and the Far East has existed for more than 90 years. It was first created by the Soviet Union to build a specialised network to monitor and contain plague and other dangerous infections across its vast eastern territories.
The institute’s own historical records trace its origins to a plague laboratory established in Irkutsk in 1923. It was formally turned into the Irkutsk Anti-Plague Institute on 5 June 1934 by order of the Soviet authorities.
Over the years, it has kept its original purpose and continues to handle dangerous pathogens. The institute’s work has continued long after plague ceased to be the global threat it once was.
Why did the Soviet Union need an anti-plague institute in Siberia?
Plague never completely disappeared after the Black Death.
The bacterium that causes it, Yersinia pestis, survives naturally among animal populations. Rodents and their fleas can maintain what scientists call natural plague foci, where the bacterium circulates without causing a permanent human outbreak.
Large parts of Siberia, Mongolia and the regions around Lake Baikal contain such natural foci. That made surveillance particularly important for Soviet health authorities.
The Irkutsk institute became part of a much larger anti-plague system covering the eastern Soviet Union. When it was created in 1934, its network included anti-plague stations in Chita and Khabarovsk. Its first director, microbiologist and epidemiologist Alexei Skorodumov, was involved in studying plague outbreaks in Transbaikal, Mongolia and China. He also wrote a major work on plague in Siberia.
Skorodumov’s career also reflects the turbulent history of Soviet science. He was arrested in 1937 during Stalin’s purges and executed in 1939 after being convicted on what was later recognised as a false political charge. He was posthumously rehabilitated in 1955.
It stopped being just a plague lab
Over the decades, the institute’s remit expanded.
Its researchers began working on diseases including cholera, brucellosis, tularemia, anthrax and arboviruses. During the Second World War, the institute worked on medicines and preventive preparations, including plague-related products and a cholera vaccine, while also supporting anti-epidemic work in parts of Siberia, the Far East and Mongolia.
One important scientist associated with the institute was Nikolai Gaisky, who worked there from 1939 to 1947. He developed a live attenuated vaccine against tularemia, another bacterial disease that can be transmitted from animals to humans.
The institute therefore evolved from a narrowly focused anti-plague organisation into a broader centre for dangerous infectious diseases.
What does it do today?
Today, the institute operates under Russia’s federal public-health system, Rospotrebnadzor.
Its stated responsibilities include surveillance of plague and other particularly dangerous infections across Siberia and the Russian Far East. It also provides scientific and practical support to anti-plague stations and health authorities across the region.
According to its website, the institute serves as a regional centre for monitoring infectious agents belonging to Russia’s highest-risk pathogenicity groups. It also functions as a centre for identifying dangerous pathogens and diagnosing particularly dangerous infectious diseases.
Its work extends beyond naturally occurring disease. The institute’s stated areas include developing diagnostic methods, studying how infections spread, improving preventive measures and preparing specialised teams capable of responding to outbreaks and other emergencies.
It also has a specific biological-safety role. Its published material says it works on biological safety and countering bioterrorism, including preparations for dealing with incidents involving dangerous biological agents.
That is an important distinction: working on biological security and preparing for a bioterrorism incident is not the same as developing biological weapons.
What about the Soviet Union’s bioweapons programme?
This is where the institute’s history becomes more complicated.
The Soviet Union did maintain a large offensive biological-weapons programme despite being a signatory to the 1972 Biological Weapons Convention. Researchers who have studied the programme have documented Soviet military work involving pathogens including plague.
But the Soviet anti-plague system was not simply the same thing as the military biological-weapons programme.
A detailed study in 1999 by the James Martin Center for Nonproliferation Studies says the Irkutsk institute belonged to the Soviet anti-plague network, whose principal purpose was civilian epidemiology and disease control. The study says these institutes did not have direct links with the Soviet Defence Ministry or the main Biopreparat biological-weapons facilities. At the same time, scientists and senior personnel did move between civilian anti-plague institutes and other Soviet biological programmes, making the history more complicated than a simple separation.
That history has resurfaced because of the current incident.
But there is currently no public evidence that the Irkutsk institute was developing plague as a weapon, nor that the death of the laboratory worker was connected to an offensive biological-weapons programme.
Why is the current incident causing alarm?
The institute became the focus of attention after laboratory worker Darya Shipilova was hospitalised on 29 September and died on 2 October after developing severe pneumonia.
Reports circulating in Russian media claimed she had accidentally broken a test tube containing plague bacteria while working at the institute. Other accounts suggested a possible connection to travel outside Irkutsk.
Neither explanation has been established.
Russia’s public-health watchdog has said the woman had pneumonia of unknown origin and that extensive testing found no microorganisms associated with her professional activities. It has also said there was no recorded laboratory accident involving dangerous microorganisms.
Nevertheless, more than 60 institute employees were reportedly isolated, while around 200 people who had contact with the woman were placed under medical observation. The hospital where she died was also quarantined.
The World Health Organization has said it is monitoring the situation and, based on the information available, assessed the public-health risk to the wider population as low. No cause of death has been officially confirmed as plague.
Why the institute matters now
The significance of the Irkutsk facility lies partly in the contradiction at the heart of the story.
It is an institution created almost a century ago to stop plague from spreading through one of the world’s largest natural plague zones. Its scientists have spent generations studying pathogens that can move between animals and humans, developing diagnostics and preparing for outbreaks.
That is precisely why an illness affecting one of its own laboratory workers has attracted such attention.
But as of now, the dramatic claim that a dangerous pathogen escaped from the laboratory has not been established.
What is established is the institute’s long history, its role in Russia’s infectious-disease surveillance system and the unusually serious precautions taken after one of its employees died.