id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-314937-jrxu65bl	Kuwelker, K.	High attack rates of SARS-CoV-2 infection through household-transmission: a prospective study	2020-11-04		.txt	text/plain	5868	391	55	The secondary attack rate of SARS-CoV-2 from index cases to household contacts reflects the natural spread of infection in immunologically naive populations with limited preventive measures to control transmission. Here, we estimated the secondary household attack rate of SARS-CoV-2 and identified the determinants of household transmission by measuring SARS-CoV-2-specific antibodies in household members of RT-PCR confirmed cases during the first month of the COVID-19 pandemic in Norway. Our study was specifically designed to assess household attack rates as measured by seropositivity in household members 6-8 weeks after onset of symptoms in the index case, with low prevalence of SARS-CoV-2 virus in the community. We calculated attack rates based on SARS-CoV-2-specific antibodies in household members, whereas the majority of previous studies have ascertained transmission based on RT-PCR, with estimates of 7·6% to 38% (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) .	./cache/cord-314937-jrxu65bl.txt	./txt/cord-314937-jrxu65bl.txt