id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-342312-rnq1hfsj	Liu, Bingfeng	Recovered COVID-19 patients with recurrent viral RNA exhibit lower levels of anti-RBD antibodies	2020-09-16		.txt	text/plain	1127	63	62	To evaluate the effect of specific antibodies on RP status, we compared the levels of anti-SARS-CoV-2 IgG to the S, RBD, HR1-HR2, N, and M proteins in these patients during their convalescent period ( Fig. 1c; Fig. S3 ). The P value was calculated using a two-tailed Mann-Whitney U test the level of IgM to the RBD protein among these recovered patients also correlated with the S, HR1-HR2, and N proteins (r = 0.67, p < 0.0001; r = 0.56, p < 0.0001; and r = 0.60, p < 0.0001, respectively) (Fig. S6b) . In addition, a positive correlation was also observed between age and IgG level to the RBD, S, HR1-HR2, and N proteins (r = 0.38, P = 0.0077; r = 0.40, P = 0.0055; r = 0.45, P = 0.0017; and r = 0.44, P = 0.0021, respectively; Fig. S7 ), indicating the important role of age in the generation of specific binding antibodies. The online version of this article (https://doi.org/10.1038/s41423-020-00528-0) contains supplementary material.Competing interests: The authors declare no competing interests.	./cache/cord-342312-rnq1hfsj.txt	./txt/cord-342312-rnq1hfsj.txt