A total of 184 methicillin-resistant Staphylococcus aureus (MRSA) strains were collected from patients who sought treatment primarily for skin and soft tissue infections from January 1, 1999, to March 31, 2002, in east-central Saskatchewan, Canada. Molecular subtyping analysis using pulsed-field gel electrophoresis showed 2 major clusters. Cluster A (n = 55) was composed of a multidrug-resistant MRSA strain associated with a long-term care facility and was similar to the previously reported nosocomial Canadian epidemic strain labeled CMRSA-2. Cluster B (n = 125) was associated with cases identified at community health centers and was indistinguishable from a community-associated (CA)-MRSA strain identified previously in the United States (USA400). Cluster B remained susceptible to a number of classes of antimicrobial agents and harbored the lukF-PV and lukS-PV toxin genes. Over 50% of both clonal groups displayed high-level resistance to mupirocin. This is the first report of the USA400 strain harboring the lukF-PV and lukS-PV toxin genes in Canada.
G Horsman合作论文数2Melanie Fidyk合作论文数2
Michael Mulvey合作论文数Antimicrobial Resistance and Nosocomial Infections Laboratory, National Microbiology Laboratory, Public Health Agency of Canada;IWK Health Centre;University of Guelph;Hospital for Sick Children, University of Toronto;Department of Veterinary Pathology, University of Saskatchewan2Shirley Woods合作论文数1E. Nagle合作论文数1R. Mcdonald合作论文数1T. Du合作论文数1Laura Macdougall合作论文数1S. Woods合作论文数1D. Spreitzer合作论文数1
