Whole-genome analysis by 62-strain microarray showed variation in resistance and virulence genes on mobile genetic elements (MGEs) between 40 isolates of methicillin-resistant Staphylococcus aureus (MRSA) strain CC22-SCCmecIV but also showed (i) detection of two previously unrecognized MRSA transmission events and (ii) that 7/8 patients were infected with a variant of their own colonizing isolate.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3295112PMC
http://dx.doi.org/10.1128/JCM.05938-11DOI Listing

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