I'm late to the game on this one, but it's still worth noting: in late February, Castle Cheese (West) Inc., based in Lumby, B.C., issued a recall notice for some of its shredded cheese products due to potential Listeria contamination. The first recall notice posted on the CFIA's website on February 24 (here) listed just two products: shredded cheddar, and shredded parmesan (or, more specifically, "shredded dairy product" made with these two types of cheeses).
On March 13, the CFIA posted an expanded recall notice on its website (here), which included the nacho blend, cheddar, mozzarella, parmesan, and "all shredded cheese products" with specific UPC codes that were sold to institutions, hotels, and restaurants.
Four days later, yet another notice was posted on the CFIA website (here), adding crumbled feta, chipped parmesan, and more shredded parmesan to the recall list. The products were distributed throughout Canada, in the retail chain, to hotels, restaurants, and to institutions.
It's worth noting that the recall was initiated by the manufacturer, and they've been proactive in ensuring the products are removed from the marketplace. The CFIA is working with the company to ensure that the products are removed from the marketplace, and is conducting "food safety investigations" to identify the cause of the Listeria. It's also important to note that there have been no reported illnesses from these products, and that the recall is a precautionary measure.
Sources: Food Recall Warning - Sun Valley and Castle brand shredded cheese products recalled due to Listeria. (February 24, 2014). Retrieved March 25, 2014, from http://www.inspection.gc.ca/about-the-cfia/newsroom/food-recall-warnings/complete-listing/2014-02-24/eng/1393307606171/1393307607062
Food Recall Warning - Okanagan's Choice Cheese brand Shredded Cheese Products recalled due to Listeria. (March 13, 2014). Retrieved March 25, 2014, from http://www.inspection.gc.ca/about-the-cfia/newsroom/food-recall-warnings/complete-listing/2014-03-13/eng/1394763186626/1394763213149
Food Recall Warning - Meddo Belle and Okanagan's Choice Cheese brands shredded cheese products recalled due to Listeria. (March 17, 2014). Retrieved March 25, 2014 from http://www.inspection.gc.ca/about-the-cfia/newsroom/food-recall-warnings/complete-listing/2014-03-17/eng/1395091471822/1395091480655