Food inspection and food handling regulations serve to ensure sanitary practices take place at the slaughtering plants and to prevent anything unsafe from entering the food supply. But despite these safety measures, things sometimes go wrong. When this happens, the USDA or FDA can issue a recall, telling all restaurants and grocery stores to take the unsafe food from their shelves. If the problem is a disease, the agency can trace the problem all the way back to the farm and make sure it doesn’t happen again.
The FDA keeps a running log of recalls here.