DETROIT (CBS Detroit) – Double check your pantry for this snack that could make you sick.

John B. Sanfilippo & Son, Inc. (JBSS) has announced the company is voluntarily recalling Fisher brand chopped walnuts — packaged in 10 ounce plastic bags — because the FDA found some of them may be contaminated with Salmonella.

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Included in the recall are bags, sold at various stores nationwide, with the following codes and “Best By Dates” (found on the back of the package):

P03004 070690 02365 8 Fisher Chopped Walnuts 10 oz 03/23/16 HC1
P03004 070690 02365 8 Fisher Chopped Walnuts 10 oz 03/23/16 HC2

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Salmonella is an organism that can cause serious and sometimes fatal infections in young children, elderly people, and others with weakened immune systems. Healthy persons infected with Salmonella often experience fever, diarrhea, nausea, vomiting and abdominal pain. In rare circumstances, infection with Salmonella can result in more severe illnesses.

Consumers who bought this product are urged not to eat it but return it to the store of purchase for a full refund or replacement.

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Those with questions about the recall can call John B. Sanfilippo and Son, Inc. Customer Service toll-free at 800-874-8734 Monday through Friday, 9:15 a.m. to 6:15 p.m.