Update: Masks May Reduce SARS-CoV-2 Infection in Community Settings

2023-05-16

临床结果

TUESDAY, May 16, 2023 -- Masks may be associated with a small reduction in the risk for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in community settings, according to the final update of a living, rapid review published online May 16 in the Annals of Internal Medicine.

Roger Chou, M.D., and Tracy Dana, from Oregon Health & Science University in Portland, updated an evidence synthesis on N95, surgical, and cloth mask effectiveness for preventing SARS-CoV-2 infection in community and health care settings. Data were included from three randomized trials and 21 observational studies.

The researchers found that based on two randomized trials and seven observational studies, mask use may be associated with a small reduction in the risk for SARS-CoV-2 infection in community settings compared with no mask use. Surgical masks and N95 respirators may be associated with a similar risk for SARS-CoV-2 infection in routine patient care settings based on one new randomized trial with some imprecision and four observational studies. Due to methodological limitations and inconsistency, evidence from observational studies was insufficient to assess other mask comparisons.

"As in prior updates, our main finding for community settings was low-to-moderate strength evidence that mask use (any or unspecified type) may be associated with a small reduction in risk for SARS-CoV-2 infection versus no masks," the authors write.

Abstract/Full Text

Editorial

Posted May 2023

Further Support and Information on COVID-19

COVID-19: Prevention & Investigational Treatments

COVID-19 Support Group

Coronavirus Disease Guide

更多内容，请访问原始网站

文中所述内容并不反映新药情报库及其所属公司任何意见及观点，如有版权侵扰或错误之处，请及时联系我们，我们会在24小时内配合处理。

机构