id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-048483-umvrwgaw	van der Sande, Marianne	Professional and Home-Made Face Masks Reduce Exposure to Respiratory Infections among the General Population	2008-07-09		.txt	text/plain	3815	172	48	METHODOLOGY: We assessed transmission reduction potential provided by personal respirators, surgical masks and home-made masks when worn during a variety of activities by healthy volunteers and a simulated patient. CONCLUSIONS/SIGNIFICANCE: Any type of general mask use is likely to decrease viral exposure and infection risk on a population level, in spite of imperfect fit and imperfect adherence, personal respirators providing most protection. This is different from deployment of masks in the general population during an outbreak of an infectious disease, where anyone may encounter the infectious micro-organism, implying much greater heterogeneity, in training levels (experience and understanding), goodness of fit of a mask, and activities interfering with mask use and thus reducing potential reduction of transmission. Three different experiments were undertaken to assess 1) shortterm protection for different types of masks worn during 10-15 minutes by the same volunteer following a standardized protocol, 2) long-term protection of a specific mask worn continuously by a volunteer for 3 hours during regular activities, and 3) effectiveness of different types of mask in preventing outgoing transmission by a simulated infectious subject.	./cache/cord-048483-umvrwgaw.txt	./txt/cord-048483-umvrwgaw.txt