Banner Smoked Fish has voluntarily recalled 42 products from New York to California and Oregon to Florida in the 17 states it is distributed.

“The recall is because the products have the potential to be contaminated with Listeria monocytogenes, an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems,” the company wrote in a statement.

People who are healthy may see some milder, short-term symptoms like fever, severe headache, stiffness, nausea, stomach pain and diarrhea. Pregnant women are also warned to stay away from products that can potentially cause Listeria infections as they can cause miscarriages and stillbirths.

The U.S. Food and Drug Administration (FDA) discovered the problem during a routine inspection. The FDA stated “products were found to be processed under unsanitary condition.”

The products were distributed for retail and other distribution, and also online in: New York, New Jersey, Illinois, Pennsylvania, California, Florida, Nebraska, Arizona, Massachusetts, Maryland, Virginia, Nevada, Oregon, Wisconsin, North Carolina, South Carolina and Georgia.

Consumers with questions may contact the company at (718) 449–1400 from 8 a.m. – 4 p.m. ET.

The company says anyone who has purchased any of the below items “are urged to return them to the place of purchase for a full refund.” Here are the recalled products:

Products of each item vary in packing, in both air pack and vacuum packages. The lot numbers and expiration dates of these products should be listed on the back of the packages.