气候变化领域集成服务门户(CCPortal): An evidence review of face masks against COVID-19

CCPortal

DOI	10.1073/pnas.2014564118
	An evidence review of face masks against COVID-19
	Howard J.; Huang A.; Li Z.; Tufekci Z.; Zdimal V.; van der Westhuizen H.-M.; von Delft A.; Price A.; Fridman L.; Tang L.-H.; Tang V.; Watson G.L.; Bax C.E.; Shaikh R.; Questier F.; Hernandez D.; Chu L.F.; Ramirez C.M.; Rimoin A.W.
发表日期	2021
ISSN	00278424
卷号	118 期号:4
英文摘要	The science around the use of masks by the public to impede COVID-19 transmission is advancing rapidly. In this narrative review, we develop an analytical framework to examine mask usage, synthesizing the relevant literature to inform multiple areas: population impact, transmission characteristics, source control, wearer protection, sociological considerations, and implementation considerations. A primary route of transmission of COVID-19 is via respiratory particles, and it is known to be transmissible from presymptomatic, paucisymptomatic, and asymptomatic individuals. Reducing disease spread requires two things: limiting contacts of infected individuals via physical distancing and other measures and reducing the transmission probability per contact. The preponderance of evidence indicates that mask wearing reduces transmissibility per contact by reducing transmission of infected respiratory particles in both laboratory and clinical contexts. Public mask wearing is most effective at reducing spread of the virus when compliance is high. Given the current shortages of medical masks, we recommend the adoption of public cloth mask wearing, as an effective form of source control, in conjunction with existing hygiene, distancing, and contact tracing strategies. Because many respiratory particles become smaller due to evaporation, we recommend increasing focus on a previously overlooked aspect of mask usage: mask wearing by infectious people (“source control”) with benefits at the population level, rather than only mask wearing by susceptible people, such as health care workers, with focus on individual outcomes. We recommend that public officials and governments strongly encourage the use of widespread face masks in public, including the use of appropriate regulation. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	COVID-19; Masks; Pandemic; SARS-CoV-2
语种	英语
scopus关键词	contact examination; epidemiology; human; mask; prevention and control; Contact Tracing; COVID-19; Humans; Masks; SARS-CoV-2
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180926
作者单位	San Francisco, CA 94105, United States; Data Institute, University of San Francisco, San Francisco, CA 94105, United States; Warren Alpert School of Medicine, Brown University, Providence, RI 02903, United States; Center for Quantitative Biology, Peking University, Beijing, 100871, China; School of Information, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States; Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Praha 6, CZ-165 02, Czech Republic; Department of Primary Health Care Sciences, University of Oxford, Oxford, OX2 6GG, United Kingdom; TB Proof, Cape Town, 7130, South Africa; School of Public Health and Family Medicine, University of Cape Town, Cape Town, 7925, South Africa; Anesthesia Informatics and Media Lab, School of Medicine, Stanford University, Stanford, CA 94305, United States; Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Department of Physics, Hong Kong Bapt...
推荐引用方式 GB/T 7714	Howard J.,Huang A.,Li Z.,et al. An evidence review of face masks against COVID-19[J],2021,118(4).
APA	Howard J..,Huang A..,Li Z..,Tufekci Z..,Zdimal V..,...&Rimoin A.W..(2021).An evidence review of face masks against COVID-19.Proceedings of the National Academy of Sciences of the United States of America,118(4).
MLA	Howard J.,et al."An evidence review of face masks against COVID-19".Proceedings of the National Academy of Sciences of the United States of America 118.4(2021).