In several instances, commercially prepared pet food and treats have been recalled by manufacturers because of contamination with organisms such as Salmonella. Salmonella and other microorganisms may cause serious illness to the pets that eat them as well as to the people that handle the food and treats. Animals that become infected after ingesting contaminated food may also pose a risk to the people they come in contact with. The people that are most at risk from these infections are the young, elderly, pregnant, and immune-compromised. Pet owners can take several precautions to minimize the risk of illness from contaminated pet food and treats in their pets and themselves.