Lilly - there are raw hot dogs
that are sold in the grocery stores. They cost about 3 times as much as cooked ones, and they are actually healthy for you. You do have to cook them, though, it's like buying raw turkey.
The problem with processed cooked hot dogs isn't bacteria, as I understand it, but the fact that it's loaded with nitrates and garbage.
Cooking them, or heating them up doesn't solve that problem.