Isolate and mode of growth | Initial bacterial density (CFU/ml) | Penicillin (μg/ml) | Gentamicin (μg/ml) | Oxacillin (μg/ml) | Vancomycin (μg/ml) | Ciprofloxacin (μg/ml) | Rifampicin (μg/ml) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  | MIC | MBC | MIC | MBC | MIC | MBC | MIC | MBC | MIC | MBC | MIC | MBC |
SP2 | |||||||||||||
Log Planktonic | (1.2-4.1) × 105 | 0. 5 | 0. 5 | 8 | 8 | 0.06 | 0.06 | 1 | 2 | 0.12 | 0.12 | 0.008 | 0.03 |
Monolayer | (2.6-4.7) × 105 | 2 | 8 c | 16 | 16 | 0.12 | 0.12 | 0.5 | 1 | 0.12 | 0.12 | 0.004 | 0.008 |
Stat Planktonic | (3.5-9.5) × 107 | b | >1024 |  | 1024 d |  | 2 |  | 4 |  | 2 |  | 0.008 |
Biofilm | (1.0-3.2) × 107 | 128 | >1024e | 8 | 32 | 0.12 | 2 | 2 | 4 | 0.12 | 2 | 0.002 | 0.008 |
Isolate 15 | |||||||||||||
Log Planktonic | (2.2-5.5) × 105 | 128 | 128 | 32 | 64 | 16 | 32 | 4 | 4 | 0.25 | 0.25 | 0.015 | 0.03 |
Monolayer | (5.2-16.4) × 105 | >128 | >128 | 32 | 64 | 16 | 64 | 4 | 8 | 0.12 | 0.25 | 0.004 | 0.008 |
Stat Planktonic | (3.7-7.9) × 108 |  | >1024 |  | >1024 |  | >1024 |  | >1024 |  | >1024 |  | 64 |
Biofilm | (0.7-0.9) × 108 | >1024 | >1024 | 256 | >1024 | 256 | >1024 | 16 | >1024 | 0.25 | 512 | 0.004 | 0.008 |
Isolate 19 | |||||||||||||
Log Planktonic | (2.9-7.4) × 105 | >128 | >128 | 64 | 64 | 2 | 8 | 2 | 2 | 0.25 | 0.25 | 0.008 | 0.015 |
Monolayer | (3.2-14.6) × 105 | >128 | >128 | 64 | >128 | 2 | 8 | 2 | 8 | 0.12 | 0.25 | 0.002 | 0.008 |
Stat Planktonic | (0.7-1.5) × 109 |  | >1024 |  | >1024 |  | >1024 |  | >1024 |  | 1024 |  | 2 |
Biofilm | (0.1-0.2) × 109 | 1024 | >1024 | 64 | >1024 | 64 | >1024 | 4 | >1024 | 0.25 | 4 | 0.008 | 0.06 |
Isolate 22 | |||||||||||||
Log Planktonic | (2.8-5.6) × 105 | >128 | >128 | 64 | 64 | 8 | 16 | 4 | 4 | 0.12 | 0.25 | 0.015 | 0.03 |
Monolayer | (4.8-16.3) × 105 | >128 | >128 | 32 | >128 | 32 | 32 | 2 | 8 | 0.12 | 0.25 | 0.004 | 0.008 |
Stat Planktonic | (0.5-0.7) × 109 |  | >1024 |  | >1024 |  | >1024 |  | >1024 |  | >1024 |  | 256 |
Biofilm | 0.2 × 109 | 1024 | >1024 | >128 | >1024 | >128 | >1024 | 16 | >1024 | 0.25 | 1 | 0.008 | 0.03 |