id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-294136-e69ao8j0	Han, Dongsheng	COVID-19: Insight into the asymptomatic SARS-COV-2 infection and transmission	2020-08-27		.txt	text/plain	5215	263	42	successfully isolated SARS-CoV-2 from throat swabs of two asymptomatic patients in a cell culture of Caco-2 cells, suggesting the potential for presymptomatic transmission [16] ; (5) Increasing studies show clear epidemiological evidence of human-to-human asymptomatic spread of COVID-19 (described in the following section); (6) Asymptomatic infection tends to be, but is not only, identified among young people (<20 years old) [14, 15, [17] [18] [19] ; And (7) the majority (>90%) of asymptomatic patients appears to have a milder clinical course during hospitalization [15] , but the severity of the symptoms of the secondary patients infected by SARS-COV-2 from asymptomatic patients varies based on their physical constitution [2, 20] . As the transmission of SARS-COV-2 may occur in the early course of infection and a high viral load in respiratory samples could be detected [13] , RT-PCR testing for this virus is more suitable for screening at earlier stages of infection in key populations, such as patients with obvious symptoms and close contacts of asymptomatic patients [35] .	./cache/cord-294136-e69ao8j0.txt	./txt/cord-294136-e69ao8j0.txt