The areas that are prone to dirt, dust, or are accessed multiple times by different people, such as washrooms, should be thoroughly and repeatedly cleaned. Children’s rooms, kitchens, windows and doors, light switches, handrails, hallways and house exteriors should be cleaned often.  The frequency of cleaning these areas depends on how quickly these places get dirty. The infection spreads quickly from air, water, surfaces and people. Thus, regular disinfection is essential.