title: Challenges and controversies.
authors.forename: R A
authors.initials: RA
authors.lastname: Garibaldi
authors.forename: R P
authors.initials: RP
authors.lastname: Wenzel
mesh_terms: D003428:Cross Infection / Q000175:diagnosis / Q000453:epidemiology; D004813:Epidemiology / Q000639:trends*; D006761:Hospitals / Q000639:trends*; D006801:Humans