Hospitals need housekeeping professionals who understand the importance of sanitizing a space rather than just cleaning it; these employees must understand proper sanitation practices to keep the spread of infection within the hospital to a minimum. They change sheets and clean up messes, often consisting of bodily fluids. Hospital housekeeping employees must be trained in maintaining confidentiality; they are often in hospital rooms when the patients are there, sometimes with doctors or family members discussing care options. They also might be required to wash and restock scrubs, sheets, blankets and towels throughout the hospital.