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

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


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.

Publication types

  • Case Reports