Taylor Farms Pacific of Tracy, Calif., has recalled 64,000 pounds of chicken and pork products because they some broccoli in the products was found to be contaminated with listeria.

The premade foods were found to be contaminated after routine testing, according to the U.S. Department of Agriculture.

The USDA said recalled items have the numbers “P-34013” or “EST. 34013” as the department’s mark of inspection.

The dishes were made between Feb. 6 and Feb. 23, and shipped to Arizona, California, Colorado and Wyoming. The USDA said no one has complained of illness yet.

Listeria infections can cause severe and sometimes fatal illnesses in young children, the elderly and those with frail immune systems.

The Associated Press contributed to this article.