id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-266150-wox7pnkr	Torres, Juan Pablo	SARS-CoV-2 antibody prevalence in blood in a large school community subject to a Covid-19 outbreak: a cross-sectional study	2020-07-10		.txt	text/plain	4202	222	53	Once these forms were signed, a copy was emailed to participants for their records and they were directed to a secure survey that i) asked basic demographic questions, ii) requested information on any previous RT-PCR test for SARS-CoV-2 and potential contact with any Covid-19 positive cases, and iii) asked about symptoms experienced since the outbreak (date and duration in days of each symptom). Among students, antibody positive children were younger, had a higher PCR positivity rate (in those who underwent PCR testing during the outbreak), and were more likely to self-report contact with one or more confirmed cases, as compared to seronegative children ( Table 2 ). Overall, PCR testing and contact history was significantly higher in staff compared to students, which in addition to the higher antibody positivity observed in this study, support the more significant role of adults within the outbreak, in proportion to the overall population.	./cache/cord-266150-wox7pnkr.txt	./txt/cord-266150-wox7pnkr.txt