Final answer:
Hand hygiene refers to the practice of keeping hands clean to prevent the spread of pathogens. It can be achieved by washing hands with either plain or antiseptic soap and water or using alcohol-based hand rubs.
Step-by-step explanation:
Hand hygiene refers to the practice of keeping hands clean to prevent the spread of pathogens. According to the CDC, hand hygiene can be achieved by washing hands with either plain or antiseptic soap and water or using alcohol-based hand rubs. This includes steps such as wetting hands, applying soap, rubbing hands for at least 20 seconds, and washing commonly missed areas like the thumb, wrist, areas between the fingers, and under the fingernails.