With wars in Eastern Europe and the Gulf already sending the world down a dangerous trajectory toward worsening instability ahead of the Northern Hemisphere winter (see the global refining crisis), a suspected plague case at a Russian research institute has added a potential public health crisis to that risk landscape.

Axios reports that a laboratory worker's death in Siberia's Irkutsk region has prompted medical observation of nearly 200 potential contacts.

The Trump administration "is aware, monitoring the outbreak, and assessing options," the outlet said, citing an administration official.

Last week, a 28-year-old worker of the Anti-Plague Institute died of severe pneumonia. Local Russian media outlets reported that the worker may have been exposed to the bacterium responsible for pneumonic plague after breaking a test tube.

Maxim Modin, the mayor of the Shelekhovsky district in eastern Russia, near the Mongolian border, said local authorities have implemented a "comprehensive set of anti-epidemic measures."

According to Rospotrebnadzor, the Russian agency that handles infectious diseases, "no micro-organisms associated with the employee's professional duties were detected in samples taken from the patient," Modin said.

A nearby aluminum smelting plant told staff to wear masks as a precaution last week. The director of the Irkutsk Aluminum Plant, Artem Fominikh, also urged calm and noted that "there are many rumors and conflicting reports circulating."

A US State Department spokesperson told CNN on Sunday that it is aware of the possible plague case in Russia: "We are monitoring the situation closely with the CDC and our other interagency partners. Many details have not been confirmed. We encourage Russian authorities to share accurate information quickly and openly."