Follow a good housekeeping schedule and disinfect in the proper way. Make sure that the floors, walls and bathrooms are clean! Clean and disinfect toys at least weekly. Disinfect the food preparation surfaces, eating surfaces and diapering tables. The simplest way to disinfect a surface includes three steps. The first step is to clean the surface with soap and thoroughly rinse with clean water. The second step is to spray or wipe the surface with a solution of 1/4 cup of household bleach in one gallon of water. The final step is to let the surface air dry in order.