Table 3.
The susceptibilities of the chosen isolates and their biofilm category
| Clinical isolate /reference strain | MIC µg/mL | Biofilm category | Source of isolation | |||
|---|---|---|---|---|---|---|
| Ampicillin | Ceftriaxone | Gentamicin | Norfloxacin | |||
| S. aureus ATCC 6538 | 0.125 (S) | 1 (S) | 0.25 (S) | 0.5 (S) | Moderate | _ |
| S. aureus ATCC 29213 | 4 (S) | 2 (S) | 1 (S) | 1 (S) | Weak | _ |
| SA 11 | 128 (R) | 64 (R) | 8 (I) | 64 (R) | Weak | Urine |
| SA 22 | 64 (R) | 64 (R) | 1 (S) | 64 (R) | Moderate | Sputum |
| SA 33 | > 512 (R) | 128 (R) | 2 (S) | 8 (I) | Weak | Pleural aspirate |
| SA 25 | 256 (R) | 256 (R) | 8 (I) | 8 (I) | Strong | Blood |
| SA 35 | > 512 (R) | 128 (R) | 4 (S) | 16 (R) | Weak | wound |
| SA 16 | 32 (R) | 4 (S) | 1 (S) | 1 (S) | Strong | Urine |
| SA 6 | 256 (R) | 64 (R) | 8 (I) | 32 (R) | Moderate | wound |
| SA 19 | > 512 (R) | 64 (R) | 2 (S) | 32(R) | Moderate | wound |
| SA 28 | 256 (R) | 128(R) | 64 (R) | 64 (R) | Strong | Blood |
Abbreviation: S sensitive, I intermediate, R resistant according to CLSI guidelines, SA: Staphylococcus aureus