According to health guidelines, staff must wash their hands with soap for a minimum of?

The correct choice reflects the current health guidelines, which recommend that staff wash their hands with soap for a minimum of 20 seconds. This duration is established based on research and health authority recommendations, including those from the Centers for Disease Control and Prevention (CDC). Washing hands for at least 20 seconds ensures that all areas of the hands, including the backs, between fingers, and under nails, are thoroughly cleaned. This practice is crucial in preventing the spread of infections, especially in settings like assisted living facilities where residents may be more vulnerable to illness. The 20-second guideline allows for effective removal of pathogens, contributing to overall health and safety standards in care environments.