id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-327920-51s4figy	Kohler, Philipp P.	Prevalence of SARS-CoV-2 antibodies among Swiss hospital workers: Results of a prospective cohort study	2020-10-08		.txt	text/plain	1539	92	50	5 The aims of this prospective cohort study were to assess seropositivity for SARS-CoV-2, to identify risk exposures, and to describe the spectrum of COVID-19 symptoms among hospital workers. Participants' sera were analyzed for SARS-CoV-2 antibodies using 3 different tests: a lateral flow immunochromatographic assay (LFIA, Sugentech, Yuseong-gu, Daejeon, Republic of Korea), a chemiluminescence microparticle immunoassay (CMIA, Abbott Diagnostics, Lake Bluff, IL), and an electro-chemiluminescence immunoassay (ECLIA, Roche Diagnostics, Basel, Switzerland). At followup, 2 participants showed a positive LFIA (IgG) and ECLIA/ CMIA result in addition to the 8 samples confirmed at baseline, resulting in 10 of 1,012 true seropositives (1.0%) and 48 of 1,012 false seropositives (4.7%) (Fig. 1) . This finding is in line with data from the Infectious Diseases Society of America (IDSA) guideline on SARS-CoV serology testing showing a lower sensitivity of CMIA IgG compared to LFIA IgM early after infection.	./cache/cord-327920-51s4figy.txt	./txt/cord-327920-51s4figy.txt