Table 2 Microbiological and genotypic characteristics of hVISA and VSSA bacteriaemia in ICU
| Isolation no. (%) | |||
|---|---|---|---|
| hVISA (n = 14) | VSSA (n = 34) | p | |
| Vancomycin MIC | |||
| (E test) | < 0.001 | ||
| 1 mg/L | 0 | 6 | |
| 1.5 mg/L | 0 | 18 | |
| 2 mg/L | 14 | 10 | |
| MLST | 0.007 | ||
| ST-239 | 14 (100) | 14 (41.2) | |
| ST-5 | 0 | 12 (35.3) | |
| ST-59 | 0 | 5 (14.7) | |
| ST-45 | 0 | 2 (5.9) | |
| ST-1 | 0 | 1 (2.9) | |
| SCCmec type | 0.095 | ||
| II | 5 (35.7) | 17 (50) | |
| III | 9 (64.3) | 10 (29.4) | |
| IV | 0 | 5 (14.7) | |
| V | 0 | 2 (5.95) | |
| agr subgroup | 0.4 | ||
| 1 | 11 (78.6) | 20 (58.8) | |
| 2 | 3 (21.4) | 13 (38.2) | |
| 3 | 0 | 1 (2.9) | |
| agr dysfunction | 10 (71.4) | 3 (8.8) | <0.001 |