id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-297879-6xb25uhx	Moncunill, G.	SARS-CoV-2 infections and antibody responses among health care workers in a Spanish hospital after a month of follow-up	2020-08-25		.txt	text/plain	5546	320	56	A follow-up survey one month after the baseline (April-May 2020) measured SARS-CoV-2 infection by real time reverse-transcriptase polymerase chain reaction (rRT-PCR) and IgM, IgA, IgG and subclasses to the receptor-binding domain of the SARS-CoV-2 spike protein by Luminex. We found that 9.3% (95% CI: 7.1-12.0) of the participants were seropositive and the cumulative prevalence of SARS-CoV-2 infection (considering a past or current positive result to either antibody testing or rRT-PCR) was 11.2% (95% CI: 8.8-14.1). We measured IgM, IgG, and IgA isotypes and subclasses, and assessed the factors associated with new infections as well as levels and kinetics of antibodies. Levels (median fluorescence intensity, MFI) of IgM, IgG, and IgA against receptor-binding domain (RBD) of the SARS-CoV-2 spike glycoprotein stratified by asymptomatic participants and participants who reported COVID-19 compatible symptoms at recruitment (month 0, M0), month 1 (M1) or at both visits (M0&M1).	./cache/cord-297879-6xb25uhx.txt	./txt/cord-297879-6xb25uhx.txt