id	keyword
ca-2217	managers
ca-2217	herd
ca-2217	pigs
ca-2217	biosecurity
ca-2217	human
ca-2217	species
ca-2217	farm
ca-2217	life
ca-2217	animal
ca-2217	porcine
ca-2217	hog
ca-2217	disease
ca-2217	industrial
ca-2217	work
ca-2217	barns
ca-2217	labor
ca-2217	factory
ca-2217	new
ca-2217	health
ca-2217	forms
ca-2217	university
ca-2217	pork
ca-2217	workers
ca-2217	production
ca-2217	press
ca-2217	region
ca-2217	people