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

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

About 10,800 “retail units” or plastic boxes affected by the recall were sent to stores in Alabama, Georgia, North Carolina, South Carolina and Tennessee.

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

“Additional supply chain controls and retraining are being introduced to prevent recurrence.”

The recall involves plastic egg cartons with the UPC code 9661910680, the Julian code 327 and a “Use 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.

Salmonella is a leading cause of foodborne illness, hospitalizations and deaths in the U.S., according to the Centers for Disease Control and Prevention.

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