Run water over your fresh fruits and vegetables before you cut into or peel them. Using a clean vegetable scrub brush is a good idea also. It is usually NOT necessary to use soaps or detergents to do this cleansing. Bacteria is alive and well on the exterior of these foods. When we take a knife and cut through the fruit or vegetable, our knife drags the bacteria from one side of the food clear through to the other side.
I got this information from the NBC TV show, THE DOCTORS.