俄罗斯西伯利亚地区因一例疑似鼠疫病例，数十人被隔离。此前，一家研究所的一名实验室工作人员在未公开的情况下患病并死亡。半岛电视台的德米特里·梅德韦登科梳理了目前已知的情况。
Dozens of people have been quarantined over a suspected case of the plague in Russia’s Siberia, after a laboratory worker at a research institute fell ill and died in undisclosed circumstances. Al Jazeera’s Dmitry Medvedenko looks at what we know so far.