Thousands of eggs sold at Costco that may be contaminated with salmonella are being recalled, the latest in a series of food safety incidents in the U.S. in recent months.

The recall involves 24 pieces of organic, pasture-raised eggs sold under the Kirkland Signature brand name and distributed to 25 Costco stores beginning Nov. 22, the U.S. Food and Drug Administration announced this week.

About 10,800 recalled “retail units,” or plastic boxes, were shipped to stores in Alabama, Georgia, North Carolina, South Carolina and Tennessee.

Handsome Brook Farms is voluntarily recalling them “after the company discovered that eggs not intended for retail distribution were instead packaged and distributed in retail packaging,” the recall notice said.

“Additional controls and retraining in the supply chain will be implemented to prevent a recurrence.”

The recall involves plastic egg cartons with UPC code 9661910680, Julian code 327, and an “expiration date” of January 6, 2025 printed on the side.

If you have eggs, don’t eat them. Return them to a local Costco store for a full refund or throw them away.

So far, no one has become ill from the affected eggs, the FDA noted.

According to the Centers for Disease Control and Prevention, salmonella is a leading cause of foodborne illness, hospitalization and death in the United States.

The bacteria can cause serious and potentially fatal infections in children, the frail or elderly, and people with weakened immune systems, the FDA warns. Symptoms in healthy people include fever, diarrhea, nausea, vomiting and abdominal pain.

This notice follows a separate, massive egg recall in September and October that also involved salmonella contamination at another poultry farm.

This article was originally published on TODAY.com