Disease-causing microorganisms often live on inanimate objects (AKA fomites).

Where you disinfect is based on common sense and, for cleaning professionals, regulations. Common sense dictates that you routinely disinfect high-touch surfaces. Governmental and professional infection prevention organizations provide more guidance.

Environmental services managers, housekeeping professionals and homeowners are guardians of the health of people and the environment. Be educated and vigilant in your pursuit of safe and environmentally responsible cleaning and disinfection methods. Keeping the indoor environment clean and safe truly matters.

You should disinfect under the following conditions:

Indoor surfaces, such as tables, chairs, telephones, toilet seats, sink faucets, handrails, and doorknobs have become highly contaminated with microorganisms. These frequently touched surfaces, or touchpoints, especially need disinfecting when an occupant is ill. Disinfecting also is important when someone is more vulnerable to illness (such as an immunocompromised person, very elderly person, or young person).
Local, state, or federal regulations recommend disinfectants in certain situations or require you as a professional to use specific disinfectants for the cleanup of blood or body fluids.

The key to targeted disinfecting is to attack touchpoints. Disinfect wherever bacteria or pathogenic organisms find a ready food source or organic matter and moisture. Sinks, computer keyboards, restroom fixtures--all provide happy hunting and breeding grounds for microbes. Your job is to eliminate or greatly these live pathogens and help prevent the transmission of disease. Who knows how many lives can be saved through consistent and effectual cleaning and disinfection? It's the accident that never happened.