This after a pilot project to improve hand-washing compliance in a small number of hospitals. NYT has the story: before the project, 50% compliance; now, 75%.
Why is this interesting? In the US there's 90,000 deaths due to health-care-associated infections every year. Unwashed hands are a major vector for these infections. It's a multi-billion dollar problem, again just in the US.
This short report [pdf] on the project is interesting throughout. The numbers are amazing, the final goal (90+% compliance) is still in the distance, and the practical approaches to getting there are at turns fascinating and bizarre.
Lean Six Sigma approach to hand washing? Really?