Siberia Quarantine After Russian Lab Researcher Dies of Unknown Pneumonia

Dozens of people are in quarantine in Siberia following the death of a 28-year-old laboratory researcher from a Russian plague institute, who died after being diagnosed with pneumonia of "unknown" origin. The US State Department says it is closely monitoring the situation. The researcher worked at the Irkutsk Anti-Plague Research Institute in Shelekhov, and regional authorities are implementing "comprehensive anti-epidemic measures." No infectious disease cases have been recorded among institute staff in the last 10 days, and all recent contacts are being tested and examined. The World Health Organization assesses the public health risk as "low," noting it is in contact with Russian health authorities. While pneumonic plague is deadly, experts say it is not easily transmissible, and the institute's strict protocols are designed to prevent any potential spread.