pilipalao 发表于 31-7-2020 19:42:47

US travel bans came too late for New York City, CDC study finds

根据美国疾病控制和预防中心对病例的最新分析,华盛顿旨在阻止冠状病毒从中国和欧洲进入美国的旅行禁令为时已晚。
https://www.cnn.com/2020/07/16/politics/us-travel-bans-late-new-york-city-coronavirus/index.html
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