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a multistate outbreak of escherichia coli o157:h7 infections linked to alfalfa sprouts grown from contaminated seeds.a multistate outbreak of escherichia coli o157:h7 infections occurred in the united states in june and july 1997. two concurrent outbreaks were investigated through independent case-control studies in michigan and virginia and by subtyping isolates with pulsed-field gel electrophoresis (pfge). isolates from 85 persons were indistinguishable by pfge. alfalfa sprouts were the only exposure associated with e. coli o157:h7 infection in both michigan and virginia. seeds used for sprouting were traced ...200111747724
results of a nationwide survey to determine feedstuffs fed to lactating dairy cows.a nationwide survey to determine feedstuffs used in the diets of dairy cows was conducted. this survey was mailed to dairy nutritionists at universities in each state to describe the use of 144 feedstuffs. twenty-eight states responded and were grouped by region as follows: northeast (maine, maryland, new hampshire, new york, ohio, vermont, and west virginia), northwest (idaho, oregon, and washington), midwest (iowa, illinois, michigan, minnesota, missouri, nebraska, north dakota, south dakota, ...199910068966
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