The recall affects 12-ounce bags of the product, which were sold in 20 states and pose serious health risks if consumed.

The recalled salmon has been removed from store shelves, but consumers are still urged to check their freezers.

In late October, Brooklyn-based Acme Smoked Fish voluntarily recalled its smoked salmon sold under Costco's in-house brand Kirkland. At the time, laboratory testing of the smoked salmon confirmed the presence of L. monocytogenes, the bacteria that can lead to listeriosis.

Kirkland Signature Smoked Salmon products recalled in October 2024 are now considered to be a Class 1 recall, the FDA’s most serious warning.