World Health Organization (WHO) marks May 5 every year as World Hand Hygiene Day. This year, WHO is marking the day with the theme – Unite for safety: clean your hands, with a focus on encouraging people to clean hands at the right times with the right products that will help lead to high quality safer care everywhere. It states that good hand hygiene is relatively cheap, and a cornerstone of safe and effective health care. Here's all about World Hand Hygiene Day 2022.