What is the correct way to wash hands to prevent infection?

Washing hands with soap and water is a fundamental practice for preventing infection. The process involves scrubbing for at least 20 seconds, which is crucial for effectively removing dirt, bacteria, and viruses from the hands. This duration allows for thorough cleaning, particularly in areas that are often missed, such as between fingers and under nails. Rinsing thoroughly is equally important, as it ensures that all soap and any dislodged pathogens are washed away.

While hand sanitizer can be effective, it is not a substitute for handwashing, especially when hands are visibly dirty or greasy. Handwashing with soap and water is designed to break down the oils and contaminants in a way that sanitizers cannot. Washing hands only briefly with water, as suggested in one of the choices, fails to utilize soap's cleaning properties, leaving potential pathogens on the skin. Additionally, only washing hands after contact with clients does not take into account other situations where hand hygiene is crucial, such as before preparing food or after using the restroom. Thus, regular and proper handwashing is a key component in infection control.