What temperature does bacteria grow rapidly?

Example.

Starting with a single bacterial organism, it would start to consume microscopic portions of the food substance in order to produce said food substance into energy. The bacterial organism would then start to divide and multiply. Some bacteria can form spores when it cannot survive very well (such as in freezing temperature) and then take off the spore "barrier" when multiplication and feeding conditions are better. Bacteria can grow very rapidly if it is left in the "temperature danger zone" which is 41 F - 135 F ( 5 C - 57 C). If food is left in these temperatures a single bacterial organism can multiply up to a billion in 10 hours.

Smack dab in the middle of these two temperatures is the human body temperature 98.6 F. It is imperative to make sure to take the proper precautions as to not promote the growth of bacteria on food as our body temperature is a prime environment for bacterial growth.