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.

中文翻译：

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国际旅行控制对于延迟 COVID-19 本地爆发的有效性

在冠状病毒疾病大流行期间，国际旅行管制被广泛采用。为了确定这些措施的有效性，我们分析了165个国家的数据，发现提前实施国际旅行管制导致首次病例疫情高峰平均延迟了5周。