id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-329945-p5hljkkm	Zhou, Zhi‐Guo	Mask is the possible key for self‐isolation in COVID‐19 pandemic	2020-04-08		.txt	text/plain	393	28	66	States mainly adopt the method of social distance between people to reach 6 feet to prevent infection, but for the COVID-19 pandemic, it may not be effective as we supposed. First of all, the disease is highly contagious, and whether a virus with a reproduction number of more than 2 can achieve true isolation through the so-called social distance by feet is a matter of probability rather than mathematics. A recent MIT study published in JAMA found that social distance requires 27 feet to be guaranteed not to be infected, which is not operational in real life 3 . In addition, there are a large number of asymptomatic infections in this outbreak. In fact, in high-risk areas with a large number of patients, without sufficient testing to confirm clean, everyone can only be seen as potential infected, including themselves. In fact, there have been cases of concentrated infection by a large number of people in confined spaces 6 .	./cache/cord-329945-p5hljkkm.txt	./txt/cord-329945-p5hljkkm.txt