Table 1.
Genotypic characterization of the 100 unique S. aureus strains in this study
| Isolate group (no. of isolates) and CDC PFGE profile | MLST(s)a | No. of strains | No. of PFGE subtypes | SCCmec type | No. PVL+ |
|---|---|---|---|---|---|
| CA-MRSA (62) | |||||
| USA300 | ST8 | 26 | 10 | IV | 26 |
| USA400 | ST1 | 4 | 2 | IV | 4 |
| USA500 | ST8 | 6 | 4 | IV | 0 |
| USA700 | ST72 | 5 | 2 | IV | 0 |
| USA1100 | ST30 | 11 | 5 | IV | 11 |
| USA1000 | ST59 | 3 | 1 | IV | 0 |
| USA1000 | ST12, ST729 | 4 | 2 | 0 | |
| USA1000 | ST87, ST97, ST231 | 3 | 0 | ||
| HA-MRSA (17) | |||||
| USA100 | ST5 | 12 | 11 | II | 0 |
| USA200 | ST3 | 4 | 3 | II | 0 |
| USA600 | ST45 | 1 | 1 | II | 0 |
| MSSA (21) | ST5 | 2 | |||
| ST8 | 9 | ||||
| ST12 | 1 | ||||
| ST45 | 3 | ||||
| ST36 | 1 | ||||
| ST88 | 1 | ||||
| ST730 | 1 | ||||
| ST188 | 1 | ||||
| ST474 | 1 | ||||
| ST731 | 1 |
a
MLST, multilocus ST.