Table 3.
Molecular Characterization of Environmental MRSA Isolates from the Small Animal Hospital in The Ohio State University Veterinary Medical Center during the MRSA Active Surveillance
| |
By sample (total n=77) |
By isolate (total n=81) |
||
|---|---|---|---|---|
| Environment | MRSA | % | MRSA | % |
| SCCmec typing | ||||
| Type II | 73/77 | 94.8% | 76/81 | 93.8% |
| Type III | 2/77 | 2.6% | 2/81 | 2.5% |
| Type IV | 3/77 | 3.9% | 3/81 | 3.7% |
| PFGE | ||||
| USA 100 | 71/77 | 92.2% | 73/81 | 90.1% |
| USA 300 | 2/77 | 2.6% | 2/81 | 2.5% |
| USA 500 | 1/77 | 1.3% | 1/81 | 1.2% |
| USA 800 | 1/77 | 1.3% | 1/81 | 1.2% |
| Iberian | 1/77 | 1.3% | 1/81 | 1.2% |
| Novel type | 2/77 | 2.6% | 2/81 | 2.5% |
| No typea | 1/77 | 1.3% | 1/81 | 1.2% |
a
One isolate that did not match to any USA type.
MRSA, methicillin-resistant Staphylococcus aureus; SCCmec, staphylococcal chromosomal cassette mec PFGE, pulsed-field gel electrophoresis.