System Change

Allegranzi, Benedetta Infection Prevention and Control Global Unit, Department of Service Delivery and Safety; World Health Organization, and Faculty of Medicine, University of Geneva; Geneva Switzerland
Voss, Andreas Radboud University Medical Centre and Canisius-Wilhelmina Hospital; Nijmegen The Netherlands
Pittet, Didier Infection Control Program and WHO Collaborating Centre on Patient Safety; University of Geneva Hospitals and Faculty of Medicine; Geneva Switzerland