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. 2015 Nov;21(11):1973–1980. doi: 10.3201/eid2111.150452

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.