Table I
Prevalence and characterization of S. aureus isolates in different clinical samples.
| Sample | Strain No | Vancomycin test | Methicillin and oxacillin test | The mecA gene | The spa gene | The pvl gene | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| VSSA | VRSA | MRSA | MSSA | mecA+ | mecA- | spa+ | spa- | ||||
| 1 | Urine | 34 | 32 | 2 | 32 | 2 | 31 | 3 | 23 | 11 | 5 |
| 2 | Nasal swab | 7 | 4 | 3 | 7 | 0 | 7 | 0 | 7 | 0 | 2 |
| 3 | Wound | 9 | 9 | 0 | 9 | 0 | 9 | 0 | 9 | 0 | 3 |
| 4 | Burn | 5 | 5 | 0 | 5 | 0 | 5 | 0 | 5 | 0 | 2 |
| 5 | Tonsil | 6 | 6 | 0 | 6 | 0 | 5 | 1 | 6 | 0 | 2 |
| 6 | Blood | 2 | 2 | 0 | 1 | 1 | 2 | 0 | 2 | 0 | |
| 7 | Sputum/pleural | 2 | 2 | 0 | 2 | 0 | 2 | 0 | 2 | 0 | |
| Total | 65 | 60 | 5 | 62 | 3 | 61 | 4 | 54 | 11 | 14 | |
Fig. 1.
The variable PCR product of the spa gene; lanes 2–8. Lanes 1 and 9, 100-bp DNA ladder.
Fig. 2.
Phylogenetic tree based on specimens, strain types, spa types, vancomycin and methicillin resistance, the mecA gene, geographical location, and spa repeats.