Have to enter my two cents here...
Multiple studies have shown that a majority of dogs and cats fed raw diets shed salmonella and even ecoli in their stools. They are not sick, but they can spread the bacteria around their environment. Especially at risk in these situations are people with less than average immune-systems (ie children and elderly, or anyone with illness or on immune-suppressant drugs).

I know that many clients SWEAR by the health of their pets since starting to add raw diets, but the risks are definitely there.