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How Foster Farms Is Solving The Case Of The Mystery Salmonella

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. (NPR)
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. (NPR)

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