title: Community-associated methicillin-resistant staphylococcus aureus epidemic clone USA100; more than a nosocomial pathogen.
abstract: BACKGROUND
  We characterized 100 USA100 epidemic MRSA from individuals in the community with no known healthcare-associated risk factors.
  
  
  RESULTS
  Molecular epidemiology demonstrated 21 pulsed-field types and six spa types. SCCmec typing demonstrated that all of the strains possess the type II cassette. The staphylococcal enterotoxin D virulence gene was also present.
  
  
  CONCLUSIONS
  Characterization of USA100 MRSA in the community illustrated the importance of nasal carriage, and the genetic diversity of the USA100 clone.
authors.affiliation: Department of Environmental and Occupational Health, University of South Florida, College of Public Health, Tampa, FL 33612 USA.
authors.forename: Jill C
authors.initials: JC
authors.lastname: Roberts
keywords: MRSA; PFGE; Spa; Staphylococcus; USA100
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