Two types of frozen spinach have been recalled.

Sno Pac Foods’ Del Mar 35 Lb. Bulk Organic Frozen Spinach and Sno Pac 10 Oz. Organic Frozen Cut Spinach have been recalled due to potentially being contaminated with Listeria monocytogenes (commonly known as listeria), according to the U.S. Food and Drug Administration (FDA).

The product was distributed in stores throughout the United States.

Several grocery stores and retailers, including Foodtown, Lincoln Market, HarvesTime Foods and Midamar, appear to sell the product. General distributors listed on Sno Pac’s website include Ace Natural, Azure Standard, Iowa Food Hub, Kehe and UNFI.

The frozen spinach product comes in a 35-lb. box with lot codes 250107A, 250107B, 250107C, 250107D, 2501071 and 2501073 with a Jan. 7, 2027, expiration date; or in a 10-oz. retail package marked with lot codes SPM1.190.5 with a July 9, 2027, expiration date, SPC1.160.5 with a June 9, 2024, expiration date, SPC2.160.5 with a June 9, 2027, expiration date and SPM1.097.5 with an April 7, 2027, expiration date.

The recall was issued after a case of spinach from the company’s supplier tested positive for Listeria monocytogenes. The company has suspended the production of the product during its investigation.

No illnesses have been linked with the recall as of Oct. 6, per the FDA.

Listeria infections can be life-threatening for older adults, pregnant people, newborns and those with weakened immune systems.

According to the Centers for Disease Control and Prevention (CDC)symptoms can include fever, muscle aches, headache, confusion, loss of balance and seizures.

On Oct. 6, the U.S. Department of Agriculture (USDA) issued a health alert after spinach used in HelloFresh ready-made meals tested positive for Listeria monocytogenes.

The USDA’s Food Safety and Inspection Service (FSIS) published the warning after FreshRealm, a California-based company that produces meals for HelloFresh, reported that routine testing found traces of listeria. This bacterium can cause serious illness in vulnerable populations and was found in the spinach used in two products.

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The products named in the announcement were the Cheesy Pulled Pork Pepper Pasta and Unstuffed Peppers with Ground Turkey. The meals, which were shipped directly to customers, are part of a wider concern about listeria contamination across several ready-to-eat food brands.

That outbreak, traced to Nate’s Fine Foods in Roseville, Calif., has sickened at least 20 people and resulted in four deaths, according to CBS News.