US closely monitoring case of lab worker who ‘possibly’ died of plague in Siberia, says Rubio

Quarantine measures in place in several hospitals in eastern Russia amid uncertainty over death of Darya Shipilova

俄罗斯伊尔库茨克抗鼠疫研究所一名28岁女员工在实验室事故后身亡，俄官方称死因为"不明原因肺炎"，但地方官员一度称其死于鼠疫，引发当地隔离与恐慌。美国国务卿鲁比奥表示美方正密切关注，但认为无需恐慌。