Sharing indoor space has been confirmed as a major risk factor in transmission of SARS‐CoV‐2. A study of over 7000 cases found that all outbreaks involving three or more people occurred indoors.1 Thus, identifying the dominant modes of transmission is an urgent public health priority so that appropriate control strategies can be selected and deployed. Here, we present three lines of evidence supporting the potential for airborne transmission and recommend steps to mitigate the risk in indoor environments.

中文翻译：

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识别和控制室内环境中 SARS-CoV-2 的空气传播。

共享室内空间已被证实是 SARS-CoV-2 传播的主要危险因素。一项对 7000 多个病例的研究发现，所有涉及三人或三人以上的疫情爆发都发生在室内。 1因此，确定主要的传播方式是一项紧迫的公共卫生优先事项，以便选择和部署适当的控制策略。在这里，我们提出了三方面证据，支持空气传播的可能性，并建议采取措施来减轻室内环境中的风险。