A Pennylvania-based supermarket chain is recalling a crab spread sold at its retail locations because the product may be contaminated with Listeria monocytogenes. Sister companies GIANT and MARTINS issued a voluntary recall of Gold Coast Crab Spread Friday after a sample of the product tested positive for Listeria. Product subject to the recall is sold in 8 oz. containters marked with UPC 83355500325 and an expiration date of 1/31/13. No illnesses have been linked to consumption of this product to date, reported the company. Consumers who purchased the recalled product should discard it or return it to its point of purchase for a full refund. Symptoms of Listeria infection include fever, muscle aches, diarrhea, headache, stiff neck, confusion and convulsions. In pregnant women, symptoms can be more non-specific, and include fatigue and aches. Listeria infection in pregnant women can lead to miscarriages or stillbirths. Children, the elderly and those with compromised immune systems are also at risk of more serious illness from Listeria. If you think you may have contracted a Listeria infection, contact your healthcare provider.