The U.S. Department of Agriculture said the nearly 7,000 pounds of ground beef products were produced by Valley Meats on Dec. 22. It was shipped to Illinois, Indiana, Iowa and Michigan.
The packaging has the establishment number of "e-s-t-5-7-1-2" printed on the USDA marks of inspection.
The USDA said it found the contamination during routine testing. No illnesses have been reported.
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