National Handwashing Week (Dec. 3-9) is dedicated to helping people remain healthy one handwash at a time. Practicing hand hygiene is a simple yet effective way to prevent infections. Cleaning your hands can prevent the spread of germs, including those that are resistant to antibiotics and are becoming difficult, if not impossible, to treat. On average, health-care providers clean their hands less than half of the times they should. On any given day, about one in 25 hospital patients has at least one health care-associated infection.