The company behind the recalled products, Mann Packing, exports some products to Canada, and routine testing of those exports turned up Listeria. While there have been no reported or confirmed illnesses from these products, note that the incubation period for Listeria ranges from three to 70 days, so people could get sick more than two months from now.
Now there are a lot of products included in this recall. They were sold under Mann’s own brand name, and also under the store brands of Archer Farms (at Target), H-E-B, Little Salad Bar, Signature Farms (at Albertsons), Trader Joe’s, Walmart, and Western Family. You can find a table with all of the items listed here on Consumerist's website, and images of the Mann’s packaging for each product is available on the company’s website.