Dissemination of vancomycin-resistant Enterococcus faecium (VREfm) with similar pulsed-field gel electrophoresis patterns in three Swedish hospitals between 2007 and 2011 prompted molecular characterization to reveal the possible origins and features of the strain. A representative subset of collected isolates (VREfm (n=18) and vancomycin-susceptible Enterococcus faecium (VSEfm) (n=2)) reflecting ...