Rubio says U.S. closely monitoring Siberian lab death over plague-spread concern

U.S. Secretary of State Marco Rubio said on Oct. 5 the U.S. is closely monitoring the death of Daria Shipilova, a 28-year-old technician at Siberia's Irkutsk Anti-Plague Institute, over concern it could have spread pneumonic plague. He called it not cause for alarm but cause for focus and monitoring. What happens next depends on laboratory evidence still undisclosed.