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When hands are visibly soiled, washing hands with soap and water is the recommended practice because it effectively removes dirt, debris, and microorganisms that may be present on the skin. Soap works by breaking down oils and dirt, allowing them to be washed away with water, which is essential for effective hygiene.

Using hand sanitizer is not sufficient in this case, as alcohol-based sanitizers may not eliminate all types of dirt and organic material. Wiping hands with a disinfectant wipe may not provide the thorough cleaning needed to address visible soil and may miss some pathogens or contaminants. Rinsing hands with plain water does not remove contaminants; it only dilutes them. Thus, thorough hand washing with soap and water is critical for effective infection control when hands are visibly dirty.