Which method is considered the most effective and practical for preventing the spread of infection?

Hand washing with soap is considered the most effective and practical method for preventing the spread of infection because it not only reduces the number of germs on hands but also physically removes dirt, bacteria, and viruses. The mechanical action of scrubbing with soap and water effectively dislodges pathogens from the skin's surface, allowing for thorough removal upon rinsing.

This method is supported by numerous health organizations and studies, which emphasize that hand hygiene is a critical component in infection control, particularly in healthcare settings. While hand sanitizers, gloves, and antibacterial wipes can be useful in certain scenarios, they do not provide the same level of thoroughness in eliminating harmful microorganisms as hand washing with soap and water. Additionally, soap and water are accessible, inexpensive, and environmentally friendly, making them a practical choice for infection prevention in diverse settings.