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PBS News Hour
What to know about pneumonic plague after Russian lab death
The U.S. is closely monitoring a potential case of pneumonic plague in Russia after a laboratory worker who studied the disease fell ill and died. Russian authorities insist there is no cause for alarm, but officials have imposed quarantines and other measures at several medical facilities in Siberia. Geoff Bennett discussed more with Annie Jacobsen, author of "Biological War: A Scenario."
