In November, Costco recalled nearly 260,000 eggs sold under the Kirkland Signature brand in 25 stores nationwide. The eggs landed on shelves in Alabama, North Carolina, Georgia, South Carolina and Tennessee starting Nov. 22, according to the company.

The FDA has raised the level of a Costco egg recall, warning of the risk of severe illness or death due to potential salmonella contamination. Over 10,000 cartons of Kirkland brand organic eggs sold at stores across the South are affected.

FDA escalates Costco egg recall to Class I, its highest risk level, over salmonella concerns. Learn what Class I means, how recalls escalate, and what it means for you.