Bob O'Connor, a Foster Farms veterinarian, holds an 11-day-old chick at a ranch near the town of Merced, in California's Central Valley. Dan Charles/NPR hide caption

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How Foster Farms Is Solving The Case Of The Mystery Salmonella

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Foster Farms set up new procedures to deal with salmonella contamination after the USDA threatened to shut down its plants last fall. Justin Sullivan/Getty Images hide caption

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