The Canadian Food Inspection Agency (CFIA) has expanded its recall of potentially E. Coli-tainted beef products for the sixth time.

In a statement issued Sunday, the agency said it has added new products to its orginal list, with advisories on Sept. 17, 19, 20 and 21 tacked atop the initial Sept. 16 advisory.

'This recall includes unlabelled and/or unbranded ground beef products available for sale from August 24 through September 16, 2012 and sold at retail stores not identified in the CFIA's product list which may include small retailers, local meat markets and butcher shops," the statement said. "Therefore, the CFIA is advising consumers who are unsure if they have the affected ground beef product in their home to check with the store(s) where the product was purchased or throw it out."

Two weeks before the initial recall, tainted products were discovered at the Canada-U.S. border.

The Food Safety and Inspection Service in the U.S. has issued an advisory of its own -- saying XL Foods products have been distributed to California, Michigan, Nebraska, Oregon, Texas, Utah, Washington and Wisconsin.

A full list of the affected products and stores in Canada can be found at http://www.inspection.gc.ca/ and information from the FSIS can be found at http://www.fsis.usda.gov/ online.