美国疾病控制与预防中心(CDC)前主任、全球卫生倡议决心拯救生命“(Resolve To Save Lives)现任负责人汤姆·弗里登(Tom Frieden)博士在3月底告诉今日美国编委和记者,”它导致了感染人数的显著延迟,正因为如此,这为美国赢得了更好的准备时间。然而,这段时间并没有得到最佳利用。”
https://www.usatoday.com/story/travel/2020/07/17/cdc-europe-travel-ban-came-too-late-prevent-new-york-outbreak/5459172002/
According to the analysis of the cases by the US Centers for Disease Control and Prevention, Washington's travel ban aimed at preventing the coronavirus from entering the United States from China and Europe is too late.