The U.S. Department of Agriculture has issued a public health alert for a frozen burrito sold at Costco because officials claim it contains an undeclared allergen. A product labeled as Red’s Steak Cilantro and Lime Burrito, which was produced on June 19, contains egg not declared on its label. The burritos were shipped to Costco stores in Illinois, Michigan and Minnesota. HERE'S WHAT TO KNOWThe burritos were both packaged individually and sold 10 in a 3 lb, 2 oz. The product lots for the affected burritos include: L1 SD6170 1503, L1 SD6170 1535, L1 SD6170 1606, L1 SD6170 1639, L1 SD6170 1717, L1 SD6170 1750, L1 SD6170 1831, L1 SD6170 1908, L1 SD6170 1954, L1 SD6170 2031, L1 SD6170 2108, and L1 SD6170 2130 on the side of the label.