id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-293301-7bmj8qsv	Buonanno, Giorgio	Estimation of airborne viral emission: quanta emission rate of SARS-CoV-2 for infection risk assessment	2020-04-17		.txt	text/plain	4387	195	49	The quanta emission rates of an asymptomatic SARS-CoV-2 infected subject, with a viral load in the mouth of 108 copies mL-1, were 10.5 quanta h-1 and 320 quanta h-1 for breathing and speaking respiratory activities, respectively, at rest. The findings in terms of quanta emission rates were then adopted in infection risk models to demonstrate its application by evaluating the number of people infected by an asymptomatic SARS-CoV-2 subject in Italian indoor microenvironments before and after the introduction of virus containment measures. In particular, airborne transmission of SARS-CoV-2 by an asymptomatic 76 subject within pharmacies, supermarkets, restaurants, banks, and post offices were simulated, and 77 the reduction in the average number of infected people from one contagious person, R0, was 78 estimated. The quanta emission rate used in the simulation of the scenario represents the average value 220 obtained from the four expiratory activities (whispered counting, voiced counting, speaking, and 221 breathing); the data are reported and discussed in the result sections.	./cache/cord-293301-7bmj8qsv.txt	./txt/cord-293301-7bmj8qsv.txt