KGO ABC World News With Diane Sawyer May 23, 2014 00:36:00
Contaminated beef traced to 12 states in all. and we put a list of the grocery stores are on abcnews.com. our chief medical editor back here tonight with the states we're most concerned about. >> as you said. usda is putting a list of the retail stores that may have sold this. take a look at this map. they range all the way from florida up to massachusetts and across to north dakota. they were sold march to may. it's probably not in the stores now. my concern is it may be in freezers. >> if you may have gone to the stores? >> you want to throw it out. if you have beef in your freezer, cook it ...