Which of the following is a step in effective hand washing?

Scrubbing for at least 20 seconds is a fundamental step in effective hand washing because it ensures that all surfaces of the hands, including the areas between the fingers, under the nails, and around the wrists, are thoroughly cleaned. This duration is recommended by health authorities as it allows enough time for the mechanical action of scrubbing to help remove pathogens and dirt effectively. The use of soap during this process further aids in breaking down grease, dirt, and bacteria, enhancing the overall cleaning process. Therefore, adequate scrubbing time is essential for reducing the risk of transmitting infections and maintaining hygiene.