id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-278045-hr3r17mz	Yokota, Isao	Mass screening of asymptomatic persons for SARS-CoV-2 using saliva	2020-09-25		.txt	text/plain	2271	156	52	METHODS: We conducted a mass-screening study to compare the utility of nucleic acid amplification, such as reverse transcriptase polymerase chain reaction (RT-PCR) testing, using nasopharyngeal swabs (NPS) and saliva samples from each individual in two cohorts of asymptomatic persons: the contact tracing cohort and the airport quarantine cohort. RESULTS: In this mass-screening study including 1,924 individuals, the sensitivity of nucleic acid amplification testing with nasopharyngeal and saliva specimens were 86% (90%CI:77-93%) and 92% (90%CI:83-97%), respectively, with specificities greater than 99.9%. Currently, the diagnosis of COVID-19 is made by the detection of the nucleic acids of SARS-CoV-2 typically by real-time quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) testing of specimens collected by nasopharyngeal swabs (NPS) [5, 6] . We conducted a mass-screening study to determine and compare the sensitivity and specificity of nucleic acid amplification using paired samples (NPS and self-collected saliva) for the detection of SARS-CoV-2 in two cohorts of asymptomatic individuals.	./cache/cord-278045-hr3r17mz.txt	./txt/cord-278045-hr3r17mz.txt