Health care-associated infection (HCAI) places a serious disease burden and has a significant economic impact on patients and health-care systems throughout the world. Yet good hand hygiene, the simple task of cleaning hands at the right times and in the right way, can save lives. World Health Organization (WHO) has developed evidence-based WHO Guidelines on Hand Hygiene in Health Care to support health-care facilities to improve hand hygiene and thus reduce HCAI.