Missing details keep U.S. plague response on hold

发生了什么

Two big unknowns stand in the way of determining how serious the plague threat in Russia is and whether travel advisories, restrictions at U.S. ports of entry or other precautions are warranted. We still don't know which pathogen killed a Russian researcher, or how well contained it is. Why it matters: Though public health experts say there's no cause for Americans to panic, the episode serves as a wake-up call emph…

摘要按规则整理自下方来源原文

来源