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Springerplus. 2013 Dec;2(1):133. doi: 10.1186/2193-1801-2-133. Epub 2013 Mar 26.

Community-associated methicillin-resistant staphylococcus aureus epidemic clone USA100; more than a nosocomial pathogen.

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1
Department of Environmental and Occupational Health, University of South Florida, College of Public Health, Tampa, FL 33612 USA.

Abstract

BACKGROUND:

We characterized 100 USA100 epidemic MRSA from individuals in the community with no known healthcare-associated risk factors.

FINDINGS:

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.

CONCLUSION:

Characterization of USA100 MRSA in the community illustrated the importance of nasal carriage, and the genetic diversity of the USA100 clone.

KEYWORDS:

MRSA; PFGE; Spa; Staphylococcus; USA100

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