Hand Decontamination: Methods, Importance, and Infection Prevention

Hand decontamination removes or kills pathogenic microorganisms on hands. Primary methods:

• Handwashing with soap and water (≥20 seconds) – mechanically removes microbes and debris.
• Alcohol-based hand rub (ABHR) (≥60% alcohol) – rapidly inactivates most bacteria, viruses, fungi; preferred when hands not visibly soiled.
• Other antiseptics (e.g., chlorhexidine) – used in surgical scrubs.

Critical Times

• Before/after patient contact
• Before aseptic procedures
• After exposure to body fluids
• After touching contaminated surfaces

Consistent decontamination is the single most effective measure to prevent healthcare-associated infections and foodborne illness.