id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-349649-6nrjpwh5	Wolff, Cecilia	Bovine respiratory syncytial virus and bovine coronavirus in Swedish organic and conventional dairy herds	2015-01-13		.txt	text/plain	4472	213	58	BACKGROUND: Infections with bovine respiratory syncytial virus (BRSV) and bovine coronavirus (BoCV) are endemic to the cattle populations in most countries, causing respiratory and/or enteric disease. The incidence risk of newly infected herds did not differ statistically between OM and CM herds at any sampling occasion, neither for BRSV nor for BoCV. To assess any difference in antibody status between OM and CM herds, the prevalences of positive herds at each sampling occasion among OM and CM herds, respectively, were calculated with exact binomial confidence intervals using the package "binom" for R [29] . The incidence risk of newly infected herds, i.e. herds that went from negative to having at least one of four primiparous cows with a positive test result, did not differ statistically between OM and CM herds in any study year, neither for BRSV nor for BoCV (Table 1 ).	./cache/cord-349649-6nrjpwh5.txt	./txt/cord-349649-6nrjpwh5.txt