Introduction The emergence of resistant microorganisms in hospitals and the community is causing problems for both the treatment of patients and infection control. Organisms of particular concern include methicillin-resistant Staphylococcus aureus (MRSA), glycopeptide-resistant enterococci (GRE), gentamicin-resistant and extended-spectrum β– lactamase-producing klebsiellae, and multi-resistant pseudomonads. All these organisms are commonly transferred from patient to patient on staff hands. A recent...