[Hospital hygiene - Where are we in the sixth year of "Operation Clean Hands"?].

The national German hand hygiene campaign is implementing the WHO patient safety initiative "Clean Care is Safer Care". After 6 years over 1400 health care institutions are participating in the campaign on a voluntary basis. The implementation of the multimodal intervention concept including improvement of alcohol based hand rub availability, the introduction of 2 surveillance methods and of the WHO "My 5 Moments of Hand Hygiene Model" in those health care facilities, participating for several years, increased median hand hygiene compliance by 11% and alcohol based hand rub availability by 61%.