A pre-prepared ginger beef entrée is being recalled in Canada for possible Listeria contamination, the Canadian Food Inspection Agency says. 

No illnesses have yet been associated with the recall.

Distributed by Costco stores in Western Canada, the recalled product is the Ginger Beef Choice brand Special Combo manufactured by Calgary-based Ginger Beef Choice Ltd.

The affected product is sold in a one-kilogram package with the UPC 6 65075 22980 2 and the “best-before” date of Nov. 8, 2011.

Listeriosis can cause high fever, severe headache, neck stiffness and nausea. Pregnant women, the elderly and people with weakened immune systems are particularly at risk.

While pregnant women infected with the bacteria may only experience mild flu-like symptoms, the infection can cause premature delivery, an infection in the newborn, or even stillbirth.

Food contaminated with the bacteria may not look or smell spoiled, the CFIA stressed.