Recommendations for widespread use of face mask, including suggested type, should reflect the current published evidence and concurrently be studied. This review evaluates the preclinical and clinical evidence on use of cloth and surgical face masks in SARS-CoV-2 transmission and proposes a trial to gather further evidence.

中文翻译：

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外科口罩或布口罩预防病毒传播的功效：系统评价、荟萃分析和未来试验建议


广泛使用口罩的建议，包括建议的类型，应反映当前已发表的证据并同时进行研究。本综述评估了在 SARS-CoV-2 传播中使用布口罩和外科口罩的临床前和临床证据，并提出了一项收集进一步证据的试验。