id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-318592-08mjfs83	Chen, L.	Clinical Characteristics of Recurrent-positive Coronavirus Disease 2019 after Curative Discharge: a retrospective analysis of 15 cases in Wuhan China	2020-07-04		.txt	text/plain	3108	208	54	Serum COVID-19 antibody levels were significantly lower in recurrent-positive patients than in control patients (IgM: 13.69 {+/-} 4.38 vs. COVID-19 IgM/IgG antibody levels were significantly lower in recurrent-positive group than those in control group, which might explain why the virus RNA RT-PCR was positive after the initial clinical cure(with three times of virus RNA RT-PCR negative). Recurrent-positive COVID-19 was defined as positive results on RT-PCR testing of a nasopharyngeal swab collected during the post-discharge isolation and observation period. . https://doi.org/10.1101/2020.07.02.20144873 doi: medRxiv preprint Serum samples were tested using the COVID-19 IgM and IgG antibody detection kits (chemiluminescence method) were purchased from Shenzhen Yahuilong Biotechnology Co. Ltd. In addition, the levels of COVID-19 IgG and IgM antibodies were significantly lower (P < 0.0001, P = 0.015, respectively) in the recurrent-positive group than in the control group (Table 2) . For the 14 recurrent-positive patients who were transferred from other hospitals after being discharged, no COVID-19 IgG and IgM data were available.	./cache/cord-318592-08mjfs83.txt	./txt/cord-318592-08mjfs83.txt