Volume 21, Number 11—November 2015
Research
USA300 Methicillin-Resistant Staphylococcus aureus, United States, 2000–2013
Table
Types of genotyping* data in the MRSA TypeCat from isolates, indicating number of isolates with data for each genotyping system or result, United States 2000–2013
| Data | No. (%), N = 33,543 |
|---|---|
| MLST | 7,104 (21.2) |
| spa typing | 7,466 (22.3) |
| PFGE (USA or USA-like) | 22,846 (68.1) |
| dru Typing | 78 (0.23) |
| SCCmec type | 13,667 (40.7) |
| PVL PCR (total tested) | 10,782 (32.0) |
| PVL PCR (positive) | 7,370 (22.0) |
| ACME tested | 2,393 (7.68) |
| Capsule type | 70 (0.21) |
| Coagulase type | 48 (0.14) |
| agr type | 476 (1.42) |
*Because MRSA isolates could have been subjected to >1 typing method, these categories are not mutually exclusive. ACME, arginine catabolic mobile element; dru, direct repeat unit; MLST, multilocus sequence typing; MRSA, methicillin-resistant Staphylococcus aureus; PFGE, pulsed-field gel electrophoresis; PVL, Panton-Valentine leukocidin; SCC, staphylococcal cassette chromosome.
1These authors contributed equally to this article.
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