Russia Denies 'Epidemic Risk' After Plague Research Lab Incident

A Russian agency stated that there is no risk of an epidemic outbreak following the death of a worker at a laboratory affiliated with the Plague Research Institute in Siberia, at a time when the World Health Organization called for more information regarding the worrying incident.

The Russian "Rospotrebnadzor" agency said in a statement that it is completing a set of preventive measures in the Irkutsk region of Russia, where the laboratory is located.

It added that medical monitoring up to Wednesday included "more than 90%" of people who had contact with the deceased worker, and no dangerous pathogens were found, noting that "results from about 5,000 laboratory tests showed the absence of disease-causing microorganisms," as reported by CNN.

The death of a worker at the Irkutsk Plague Research Institute in Siberia, southeastern Russia, sparked international concern and speculation over recent days regarding the cause of her illness.

Earlier, local authorities imposed disease control measures in local hospitals in Irkutsk, a step that raised concerns among some residents.

Full risk assessment
Global health experts continue to call for caution and demand greater transparency from Moscow.

WHO Director-General Tedros Adhanom Ghebreyesus said on Wednesday that conducting a "full risk assessment" was not possible after the Russian worker's death, adding that "timely, complete, and transparent sharing of information under international regulations is essential to clarify conflicting reports and enable an accurate assessment of potential public health risks."

WHO experts also updated their initial assessment, which considered the laboratory worker's death a "low" risk to public health. They said that since it is possible the worker did not die from pneumonic plague—a bacterial infection that can spread from person to person but does not transmit easily—the risk posed by the incident has become indeterminate.

In the meantime, Maria Van Kerkhove, head of Epidemic and Pandemic Preparedness at the WHO, said the organization has been in contact with colleagues in the Russian Ministry of Health and expects "more answers."

She added: "We are already communicating with them to ask very detailed questions about the tests conducted and the results of those laboratory tests, what additional analyses are being performed if the cause remains unknown, and about the people placed under quarantine or follow-up."

She continued: "What we have been told is that no plague cases have been recorded in this area, and no high-risk pathogens have been detected." She added: "Clearly, we want more information to understand the laboratory tests that were done, the pathogens that were searched for, and if this woman did not die from plague, what was the cause of her death?"

The Kremlin dismissed these concerns, stating that Russia kept the WHO informed "in accordance with established practices."

Under the WHO International Health Regulations, which aim to prevent the cross-border spread of diseases, member states are obligated to notify the organization about "events that may constitute a public health emergency of international concern."