The World Health Organization has intensified its demand for clarity from Moscow following the death of a researcher at a Siberian plague institute and indications that a second employee may have been affected.
WHO Director-General Tedros Adhanom Ghebreyesus issued a statement on Tuesday confirming that his agency has formally requested Russian authorities to explain the circumstances surrounding the fatal pneumonia case that claimed the life of a 28-year-old worker at the Irkutsk Anti-Plague Research Institute last week.
“Timely, complete and transparent information sharing under the International Health Regulations is essential to clarify conflicting reports and enable an accurate assessment of potential public health risks,” the statement said.
The employee died on October 2 after being hospitalized with severe pneumonia, following unconfirmed reports of an accidental exposure in the laboratory. Russian officials have yet to publicly identify the pathogen responsible or detail how the infection occurred.
The case has drawn global attention, including from former President Donald Trump, who called the situation “concerning” and said he planned to discuss it with Russian President Vladimir Putin “very soon.” However, the Kremlin later disputed that any such call had been arranged.
According to Ghebreyesus, Russian health authorities have assured the WHO that no plague cases have recently been recorded in the Irkutsk region and that an epidemiological investigation has been launched. Officials added that contacts of the deceased worker were tested and placed under medical observation, with no high-threat pathogens detected, and that preventive measures have been implemented. Around 200 individuals were initially quarantined as part of the response.
The WHO chief said his organization has maintained contact with Russian officials and offered technical support, but is seeking additional information about the cause of the pneumonia, the specific pathogen that triggered the public health response, and reports involving a second employee.
Kremlin spokesman Dmitry Peskov dismissed much of the media coverage as inaccurate, directing the public to rely on information from Rospotrebnadzor, Russia's consumer safety watchdog. He also pushed back on Trump's claim of a scheduled call with Putin, stating no such conversation had been arranged.
The incident has renewed concerns about biosafety protocols at high-containment laboratories, particularly in light of past incidents involving lab-acquired infections. The U.S. State Department has reaffirmed its do-not-travel advisory for Russia in the wake of the suspected plague death, while lawmakers like Senator Marco Rubio have pressed Moscow for full transparency.
Health experts note that plague remains a persistent threat in certain regions, as evidenced by recent cases in the United States, underscoring the importance of rigorous oversight and international cooperation.
