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ABSTRACT: Background
Recommendations on masks for preventing coronavirus disease 2019 (COVID-19) vary.Purpose
To examine the effectiveness of N95, surgical, and cloth masks in community and health care settings for preventing respiratory virus infections, and effects of reuse or extended use of N95 masks.Data sources
Multiple electronic databases, including the World Health Organization COVID-19 database and medRxiv preprint server (2003 through 14 April 2020; surveillance through 2 June 2020), and reference lists.Study selection
Randomized trials of masks and risk for respiratory virus infection, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and observational studies of mask use and coronavirus infection risk were included. New evidence will
SUBMITTER: Chou R
PROVIDER: S-EPMC7322812 | biostudies-literature | 2020 Oct
REPOSITORIES: biostudies-literature