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Are all community methicillin-resistant Staphylococcus aureus related?

April 26, 2017aureus biotechnology center Methicillin-resistant National PubMed staphylococcus

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Are all community methicillin-resistant Staphylococcus aureus related?

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AIMS: To compare the relationship of community-acquired, methicillin-resistant Staphylococcus aureus (CMRSA) from five Australian States and New Zealand. METHODS: Contour-clamped homogeneous electric field (CHEF) electrophoresis and analysis of the mec complex and ccr gene complex by PCR were used to compare 22 CMRSA isolates from Western Australia (WA), South Australia (SA), Victoria (VIC), New South Wales (NSW) and New Zealand (NZ) and three hospital-acquired epidemic MRSA (EMRSA). RESULTS: Sixteen community isolates were found to carry Class B mec complex and Type 2 ccr gene complex. Two WA isolates carried the Class B1 mec complex and three VIC and one SA isolate carried a previously unreported mec complex, which has been labelled E. The ccr gene type of the Class B1 and Class E isolates could not be determined. These isolates may carry previously unreported ccr gene complexes. The relatedness of the CHEF patterns of the CMRSA was dependent on their geographical origin. A similar C