The Emergence of Enterococcus spp. resistant to aminoglycosides, beta-
lactams and/or glycopeptides has revealed that outbreaks caused by thi
s microorganism may occur. The reservoirs of these microorganisms are
infected or colonized patients and epidemic strains are transmitted fr
om a patient to another via the hands of the personnel or through cont
aminated fomites. Transfer of infected/colonized patients to another s
ervice or hospital also plays an important role in the spread of epide
mic strains. Use of bacterial epidemiological markers can be useful fo
r investigation of outbreaks caused by multiresistant enterococci.