Attributable mortality of vancomycin resistance in ampicillin-resistant <i>Enterococcus faecium</i> bacteremia in Denmark and the Netherlands: A matched cohort study

Abstract

Compared to ARE bacteremia, VRE bacteremia was associated with higher 30-day mortality. One explanation for this association would be increased virulence of VRE, although both phenotypes belong to the same well-characterized core genomic lineage. Alternatively, it may be the result of unmeasured confounding.