Which of the following is a core element of infection control in healthcare settings?

• A. Use of PPE
• B. Respiratory etiquette
• C. Hand hygiene
• D. Safe waste disposal

Answer: (C)

Hand hygiene is the most fundamental practice in infection control because hands are the primary way microbes are transferred between patients, staff, and surfaces. Regular, thorough cleaning with soap and water or using an alcohol-based hand rub at key moments—before touching a patient, before clean/aseptic procedures, after potential exposure to bodily fluids, after touching a patient, and after contact with the patient’s surroundings—drastically reduces the spread of infections. Other measures like PPE, respiratory etiquette, and safe waste disposal are important, but they support infection control rather than directly interrupting transmission as effectively as hand hygiene does. Ensuring easy access to hand hygiene resources and following these moments consistently makes it the core element of preventing healthcare-associated infections.