A foodborne outbreak of the rare Cyclospora parasite that has sickened 81 people is believed to be linked to contaminated vegetables that were grown outside the state, Iowa Health Department officials said Tuesday. "The illness onset dates, coupled with the shelf life of fresh produce, make it very likely the vegetable that was the source of the outbreak has already been eaten or thrown away and will not cause anyone else to become ill," said Medical Director Patricia Quinlisk.

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