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IS1272 and ccrA2-B genes on PCR agarose gel electrophoresis; 100-bp DNA ladder. Lanes +C and –C show the positive and negative controls. Lanes 1, 2, 3, 4, 6, 7, and 8 show IS1272 positive staphylococcal cassette chromosome mec (SCCmec type I), whereas lane 5 shows IS127 and ccrA2-B–positive MRSA (SCCmec type IV). This figure appears in color at www.ajtmh.org.
