气候变化领域集成服务门户(CCPortal): Face masks effectively limit the probability of SARS-CoV-2 transmission

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DOI	10.1126/science.abg6296
	Face masks effectively limit the probability of SARS-CoV-2 transmission
	Cheng Y.; Ma N.; Witt C.; Rapp S.; Wild P.S.; Andreae M.O.; Pöschl U.; Su H.
发表日期	2021
ISSN	0036-8075
起始页码	1339
结束页码	1343
卷号	372 期号:6549
英文摘要	Airborne transmission by droplets and aerosols is important for the spread of viruses. Face masks are a well-established preventive measure, but their effectiveness for mitigating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission is still under debate. We show that variations in mask efficacy can be explained by different regimes of virus abundance and are related to populationaverage infection probability and reproduction number. For SARS-CoV-2, the viral load of infectious individuals can vary by orders of magnitude. We find that most environments and contacts are under conditions of low virus abundance (virus-limited), where surgical masks are effective at preventing virus spread. More-advanced masks and other protective equipment are required in potentially virus-rich indoor environments, including medical centers and hospitals. Masks are particularly effective in combination with other preventive measures like ventilation and distancing. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	aerosol; disease transmission; infectious disease; severe acute respiratory syndrome; ventilation; aerosol transmission; Article; artificial ventilation; basic reproduction number; droplet transmission; human; Human coronavirus 229E; Human coronavirus HKU1; Human coronavirus NL63; Human coronavirus OC43; ID50 (median infectious dose); indoor environment; Influenza A virus; Influenza B virus; mathematical model; normal distribution; Rhinovirus; Severe acute respiratory syndrome coronavirus 2; social distancing; virus load; virus transmission; SARS coronavirus
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243317
作者单位	Max Planck Institute for Chemistry, Mainz, 55128, Germany; Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, China; Department of Outpatient Pneumology, Institute of Physiology, Charité Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, 10117, Germany; University Medical Center, Johannes Gutenberg-University Mainz, Mainz, 55131, Germany; Scripps Institution of Oceanography, University of California San Diego, San Diego, CA 92093, United States; Department of Geology and Geophysics, King Saud University, Riyadh, 11451, Saudi Arabia; State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China
推荐引用方式 GB/T 7714	Cheng Y.,Ma N.,Witt C.,et al. Face masks effectively limit the probability of SARS-CoV-2 transmission[J],2021,372(6549).
APA	Cheng Y..,Ma N..,Witt C..,Rapp S..,Wild P.S..,...&Su H..(2021).Face masks effectively limit the probability of SARS-CoV-2 transmission.Science,372(6549).
MLA	Cheng Y.,et al."Face masks effectively limit the probability of SARS-CoV-2 transmission".Science 372.6549(2021).