(AP) -- A recall of romaine lettuce that has sickened students with E. coli poisoning is expanding as the government tries to find out where the contamination occurred. A food distributor in Moore, Okla., recalled romaine lettuce on Monday that came from the same farm in Yuma, Ariz., that grew lettuce that sickened students in Michigan, Ohio and New York.
Ohio-based Freshway Foods announced a widespread recall of romaine lettuce last week related to those outbreaks.
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