id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-351100-llyl97ry	Cariani, Lisa	Time Length of Negativization and Cycle Threshold Values in 182 Healthcare Workers with Covid-19 in Milan, Italy: An Observational Cohort Study	2020-07-23		.txt	text/plain	3248	171	53	We aimed to evaluate the time length of negativization from the onset of symptoms in healthcare workers (HCWs) with COVID-19, and to evaluate significant variations in cycle threshold (CT) values and gene positivity (E, RdRP, and N genes) among positive individuals who returned to work. We collected cycle threshold values of the first SARS-CoV-2-positive nasopharyngeal swabs (T0) for all 182 HCWs and CT values at one week before the two negative RT-PCR tests (T1) for the 58 subjects who healed by 30 April 2020 (Figure 2 ). In the present study, we analyzed 2443 nasopharyngeal swabs from 1683 HCWs by molecular laboratory testing for suspected SARS-CoV-2 infection in a large university hospital in Milan, showing 10.8% positive HCWs. Overall, the majority of HCWs with COVID-19 were physicians, and the main reported symptoms were fever, cough, and headache.	./cache/cord-351100-llyl97ry.txt	./txt/cord-351100-llyl97ry.txt