Russian authorities have quarantined a hospital and are monitoring contacts of an employee at a plague research institute in Siberia who contracted pneumonia of an “unknown” cause and died. ABC News’ Elizabeth Schulze reports. ▻

Russian authorities have quarantined a hospital and are monitoring contacts of an employee at a plague research institute in Siberia who contracted pneumonia of an “unknown” cause and died. ABC News’ Elizabeth Schulze reports. ▻ ↧ Russia reports a worker at a Siberian plague institute got pneumoni... Russian authorities say a staffer at a plague research institute in Siberia contracted pneumonia of an unknown cause, and local state TV reported the woman died last week