The FDA has a great resource on for Preventing Foodborne Illness Associated with Pet Food and Pet Treats. Its been online since mid 2007 but still full of very useful information.
Disclaimer: Not intended to be a substitute for professional veterinarian advice, diagnosis, or treatment. Always seek the advice of your veterinarian with any questions you may have regarding the medical condition of your pet. If you think your pet has a medical emergency, call or visit your veterinarian or your local veterinary emergency hospital immediately.