Carolina Culinary Food , a West Columbia, S.C., firm, is recalling packages of Oscar Mayer ready-to-eat chicken breast strips with rib meat because they may be contaminated, the U.S. Department of Agriculture's Food Safety and Inspection Service said Sunday.

Officials said food scientists found Listeria monocytogenes in a sample. That type of contamination can cause listeriosis, which is uncommon but potentially fatal.

No illnesses have been reported, officials said.

The nationwide recall affects all six-ounce packages of "Oscar Mayer/Louis Rich chicken breast strips with rib meat, grilled, fully cooked, ready to eat" that bear the establishment number "P-19676" inside the USDA mark of inspection on the front of the package. On the back of each package is a "Use by" date of "19 Apr 2007."

Dierbergs did receive a limited supply of the Oscar Mayer/Louis Rich chicken breast product with the affected code dates. Customers who purchased the product at Dierbergs can return it to any Dierbergs store for a full refund.

Consumers with questions about the recall should contact the Kraft Consumer Response number at 800-871-7117.