Tyson Foods is voluntarily recalling approximately 33,840 pounds of uncooked mechanically separated chicken in 10-pound chubs sold for institutional use only. The product was produced exclusively for and distributed to a small number of institutional customers.

The Tyson Foods recall took effect on January 10.

This product is not available to the general public and is not sold in stores or restaurants.

A sample of the product analyzed by the Tennessee Department of Health was found to contain Salmonella Heidelberg. Seven confirmed illnesses that occurred in early December are potentially linked to the product. According to the USDA, some people who consumed entrees prepared with the product at a correctional facility became ill.

Approximately 846 cases of the product were produced on October 11, 2013. Each 10-pound chub bears the establishment code P-13556 and code date 2843SDL1412-18. Product cases may be identified by code 17433-928 which is printed on the exterior label.

Tyson Foods shipped the affected product, produced at a Tyson Foods plant in Sedalia, Mo., to institutional customers with distribution centers in the following states: California, Florida, Indiana, Kansas, Nevada, New Jersey, Ohio, and Wisconsin.