date:Jul 22, 2014
authorities identified mechanically tenderized beef as part of the problem. Beef steaks sold at a Costco Wholesale store in Edmonton, Alberta, were linked to several confirmed E. coli infections. However, the Canadian Food Inspection Agency was unable to establish if the steaks were contaminated before or after arriving at the store.
In May 2013, food-safety authorities announced that registered plants producing mechanically tenderized beef must label products as tenderized and provide cooking