id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-353537-skeajydw	Zhang, Xian	Asymptomatic Subclinical Cases of Coronavirus Disease 2019 without Viral Transmission in Three Independent Families	2020-09-24		.txt	text/plain	2098	119	49	Their close contacts were systematically evaluated based on COVID-19-related symptoms, nucleic acid tests, serological tests, and chest computed tomography (CT) as needed to determine if they were infected by SARS-CoV-2. Three medical staff diagnosed with asymptomatic SARS-CoV-2 infection by serological tests after returning to work and their family members were recruited for this study. The patients and their close contacts were systematically evaluated based on COVID-19-related symptoms, nucleic acid tests, serological tests, and chest computed tomography (CT) as needed to determine if they were infected with SARS-CoV-2. All their family members-including four old people, three young persons, and three children-showed no symptoms of COVID-19, and their nucleic acid and antibody tests were negative, indicating that they were not infected. During the following 2 months more, almost covering the whole disease process, from the incubation period to the recovery period, the indexes lived together with their family members, including a nasopharyngeal carcinoma patient who is theoretically vulnerable to SARS-CoV-2 infection due to impaired immune function as a result of radiotherapy or chemotherapy, without taking any protective measures.	./cache/cord-353537-skeajydw.txt	./txt/cord-353537-skeajydw.txt