Abstract
Vancomycin-resistant Enterococci, Mexico City
Highlights
To the Editor: Vancomycin-resistant Enterococcus (VRE) has become an important nosocomial pathogen because of its rapid spread, limited therapy options, mortality, and the possibility of transfer of vancomycin resistance to other pathogens such as Staphylococcus aureus
Isolates were characterized by pulsed-field gel electrophoresis (PFGE) (8,9); a dendrogram was constructed with the GelCompare II 4.0 software (Applied Maths, Kortrijk, Belgium), and the similarity was compared with the Dice coefficient
1 isolate of E. faecium was classified as non–vanA, non vanB, even though it demonstrated high-level resistance to vancomycin and teicoplanin
Summary
To the Editor: Vancomycin-resistant Enterococcus (VRE) has become an important nosocomial pathogen because of its rapid spread, limited therapy options, mortality, and the possibility of transfer of vancomycin resistance to other pathogens such as Staphylococcus aureus. From May 2004 to April 2005, the rate of vancomycin resistance among all Enterococcus isolates was 0.27%. In May 2005 the first fully VREF was isolated at our hospital, and the rate of vancomycin resistance was 6.23% (a 23-fold increase) during the following 12-month period. We performed a retrospective study to describe the isolates and the characteristics of patients with VREF.
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