Emerg Infect Dis. 2022 Jan;28(1):251-253. doi: 10.3201/eid2801.211944. Epub 2021 Oct 13.
During the coronavirus disease pandemic, international travel controls have been widely adopted. To determine the effectiveness of these measures, we analyzed data from 165 countries and found that early implementation of international travel controls led to a mean delay of 5 weeks in the first epidemic peak of cases.
在冠状病毒病大流行期间，国际旅行管制已被广泛采用。为了确定这些措施的有效性，我们分析了来自 165 个国家的数据，发现早期实施国际旅行管制可使首例病例的流行高峰平均延迟 5 周。
