id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-325014-n7mnhk2v	Gujski, Mariusz	Prevalence of Current and Past SARS-CoV-2 Infections among Police Employees in Poland, June–July 2020	2020-10-11		.txt	text/plain	4892	254	49	As the time window for a positive RT-PCR result is short, serological testing, which provides information about whether a person has been exposed to SARS-CoV-2, may be useful for epidemiological purposes to detect the overall burden of previous infection in a given community. The aim of this study was to determine the prevalence of current and past SARS-CoV-2 infections among police employees, a high-risk population due to their professional duties, during the COVID-19 epidemic. Neither sex (p =0.155) nor other variables listed in Figure 2 were significantly associated with the IgG results ( Figure 2 A logistic regression model predicting a positive anti-SARS-CoV-2 IgM+IgA index was developed (Cox and Snell R Square at 0.015 andNagelkerke R Square at 0.033). After including all variables listed in Figures 1 and 2 along with the number of registered cases and deaths due to COVID-19 (per 10,000 inhabitants), only 4 variables showed a correlation with a positive anti-SARS-CoV-2 IgM+IgA index.	./cache/cord-325014-n7mnhk2v.txt	./txt/cord-325014-n7mnhk2v.txt