Nebraska Beef Limited, based in Omaha, ordered the recall of 531,707 pounds of ground beef produced in May after it received reports 38 Ohio and Michigan residents became sick after eating beef sold by Nebraska through Kroger Company.
Ralphs, owned by Kroger, informed shoppers about the recall by posting signs in its stores.
As a precautionary measure, the U.S. Department of Agriculture advised consumers to cook ground beef at a temperature of 160 degrees Fahrenheit.


