Methicillin-Resistant Staphylococcus aureus Carriage among Students at a Historically Black University: A Case Study

Figure 1

Molecular and genotypic traits of methicillin-resistant Staphylococcus aureus (MRSA) isolates. PFGE, pulsed field gel electrophoresis; MLST, multilocus sequence typing; SCCmec, staphylococcal cassette chromosome mec; PVL, Panton-Valentine leukocidin (+, positive; −, negative); Strains NRS 382, NRS 383, NRS 384, NRS 123, NRS 385, NRS 386, and NRS 387 are the prototypic pulsotype strains of USA100, USA200, USA300, USA400, USA500, USA700, and USA800, respectively; 290*: a new arcC allele with one base-pair variation from allele 1, 29G→A; ST2562*: a new multilocus sequence type identified in this study, data of MLST type, SCCmec type, and PVL gene of strains NRS 386, NRS 384, NRS 382, NRS 385, NRS 123, NRS 387, and NRS 383 are obtained from the website of Network on Antimicrobial Resistance Staphylococcus aureus (NARSA): molecular typing control strains. (http://www.narsa.net/control/member/search?repositoryId=108).