Final answer:
The first step in proper handwashing is to wet hands with clean, running water. Soap is then applied to the hands, which are lathered and rubbed together, focusing on all areas of the hands and under the nails for at least 20 seconds. The procedure helps prevent the spread of pathogens and is critical for public health.
Step-by-step explanation:
The first step in proper handwashing procedure is to wet hands with clean, running water (warm or cold), and this should be done while keeping the hands below the forearms. This is important to prevent contaminated water from moving from the hands to the arms. After this, the tap should be turned off, and then soap needs to be applied. The Centers for Disease Control and Prevention (CDC) also emphasizes the importance of lathering your hands by rubbing them together with the soap, including the backs of your hands, between your fingers, and under your nails for at least 20 seconds to remove dirt, bacteria, and viruses.
Ensuring that hands are thoroughly washed is critical for public health, as it helps prevent the spread of pathogens. After proper lathering and scrubbing, the hands should be rinsed under clean, running water, dried completely using a clean towel or air dryer, and if necessary, using a paper towel to turn faucets on and off to avoid recontamination.