The world's largest meat processor says soy, a known allergen, was not declared on the product's label.
Tyson says the meat came from a plant in Vicksburg, Miss., between July 23 and August 1, and was shipped to Tyson food service distributors nationwide.
The U.S. Department of Agriculture's Food Safety and Inspection Service says it has received no reports about people being sickened by the chicken.
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