Secretary of State Marco Rubio on Tuesday pressed Russia to release more details about a suspected pneumonic plague outbreak after a woman who worked at a laboratory handling the deadly pathogen died. Speaking to reporters during a diplomatic stop in Iceland, Rubio said it was "incumbent" on Moscow to share what it knows with the international community.
"We encourage Russia to be transparent and share more information with the world so that all of us could react accordingly and appropriately," Rubio said, according to remarks reported by The Hill's partner NewsNation.
The call for transparency comes less than a week after Russian media reported the death of a female lab employee in Irkutsk oblast, a region in Siberia where plague occurs naturally in wild animals. Authorities are investigating whether she contracted pneumonic plague, a rare but often fatal form of the disease caused by the Yersinia pestis bacteria.
The World Health Organization said Tuesday that the risk of wider spread in Russia and to Europe is generally low, but it is awaiting an official risk assessment from the Russian Federation. The WHO also noted that the woman's workplace studies dangerous pathogens, including plague, in an area where the disease is endemic in local wildlife.
Pneumonic plague can be transmitted through respiratory droplets from infected animals or people, according to the U.S. Centers for Disease Control and Prevention. It is the most severe form of plague and can be fatal if not treated promptly with antibiotics.
Nearly 200 people are being monitored for possible infection after coming into contact with the deceased woman, with more than 100 reportedly hospitalized as a precaution, according to local reports. The situation has drawn attention from U.S. officials, including former President Trump, who earlier expressed concern and offered American assistance, as noted in Trump's pledge of aid.
The White House is also closely watching the suspected case, as detailed in this update on U.S. monitoring. Rubio's remarks add to the diplomatic pressure on Moscow to provide full transparency, a theme that has also surfaced in broader U.S.-Russia tensions over other issues, including Ukraine's claims about Russian oil infrastructure.
While the WHO's risk assessment remains pending, health officials emphasize the importance of rapid containment and information sharing to prevent any potential cross-border spread. The incident also highlights the ongoing challenges of biosecurity and pathogen research in regions where such diseases are naturally present.
Rubio's statement underscores the U.S. government's expectation that Russia will cooperate with international health authorities. The State Department has not yet indicated whether it will seek additional bilateral discussions on the matter, but the secretary's public remarks signal a firm diplomatic stance.
As the investigation continues, the international community will be watching for Russia's official response, which could include detailed epidemiological data and containment measures. The WHO has reiterated its readiness to assist if requested, but the ball is now in Moscow's court.
