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What Sparked An E. Coli Outbreak In Lettuce? Scientists Trace A Surprising Source

The Food and Drug Administration quickly identified romaine lettuce as the source of a months-long outbreak, but the foodborne illness investigation has been one of the agency's most complicated in years. (Westend61/Getty Images)
The Food and Drug Administration quickly identified romaine lettuce as the source of a months-long outbreak, but the foodborne illness investigation has been one of the agency's most complicated in years. (Westend61/Getty Images)

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