Spontaneous staphylococcal cassette chromosome mec element excision in Staphylococcus aureus nasal carriers.

Abstract:

:Among 23 patients carrying methicillin-resistant Staphylococcus aureus (MRSA) in their anterior nares, 6 (26%) also carried methicillin-susceptible S. aureus (MSSA) as less prevalent flora. In 4 of the 6 patients, the MSSA was unrelated to prevalent MRSA, as determined by pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST), and staphylococcal protein A (spa) typing. However, in two patients, the strains were identical except for the absence of spontaneous staphylococcal cassette chromosome mec (SCCmec). We consider this evidence of spontaneous SCCmec excision in vivo.

journal_name

J Clin Microbiol

authors

Boundy S,Zhao Q,Fairbanks C,Folgosa L,Climo M,Archer GL

doi

10.1128/JCM.01063-11

subject

Has Abstract

pub_date

2012-02-01 00:00:00

pages

469-71

issue

2

eissn

0095-1137

issn

1098-660X

pii

JCM.01063-11

journal_volume

50

pub_type

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