TABLE 5.
Susceptibility test results for VITEK 2 and Phoenix
| Bacterial group | Antibiotic(s) | No. of isolates testeda |
Total no. of isolates | VITEK 2 |
Phoenix |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | I | R |
n |
% |
n |
% |
|||||||||||||
| mE | ME | VME | mE | ME | VME | CA | mE | ME | VME | mE | ME | VME | CA | ||||||
| Enterobacteriaceae | Ampicillin | 24 | 4 | 113 | 141 | 1 | 0.7 | 0.0 | 0.0 | 99.3 | 3 | 1 | 2.1 | 4.2 | 0.0 | 97.2 | |||
| Piperacillin | 90 | 11 | 40 | 141 | 4 | 2 | 2.8 | 0.0 | 5.0 | 95.7 | 4 | 2.8 | 0.0 | 0.0 | 97.2 | ||||
| Piperacillin-tazobactam | 121 | 8 | 12 | 141 | 11 | 7.8 | 0.0 | 0.0 | 92.2 | 7 | 1 | 5.0 | 0.8 | 0.0 | 94.3 | ||||
| Cefazolin | 42 | 7 | 92 | 141 | 9 | 4 | 6.4 | 0.0 | 4.3 | 90.8 | 4 | 2 | 2.8 | 0.0 | 2.2 | 95.7 | |||
| Cefepime | 134 | 1 | 6 | 141 | 2 | 1 | 1.4 | 0.0 | 16.7 | 97.9 | 3 | 2.1 | 0.0 | 0.0 | 97.9 | ||||
| Cefuroxim | 60 | 16 | 65 | 141 | 3 | 2.1 | 0.0 | 0.0 | 97.9 | 0.0 | 0.0 | 0.0 | 100.0 | ||||||
| Cefotaxime | 124 | 4 | 13 | 141 | 5 | 3.5 | 0.0 | 0.0 | 96.5 | 8 | 5.7 | 0.0 | 0.0 | 94.3 | |||||
| Ceftazidime | 125 | 4 | 12 | 141 | 6 | 4.3 | 0.0 | 0.0 | 95.7 | 5 | 3.5 | 0.0 | 0.0 | 96.5 | |||||
| Meropenem | 141 | 0 | 0 | 141 | 0.0 | 0.0 | 0.0 | 00.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||
| Ciprofloxacin | 113 | 3 | 25 | 141 | 3 | 2.1 | 0.0 | 0.0 | 97.9 | 7 | 5.0 | 0.0 | 0.0 | 95.0 | |||||
| Levofloxacin | 114 | 9 | 18 | 141 | 13 | 9.2 | 0.0 | 0.0 | 90.8 | 9 | 6.4 | 0.0 | 0.0 | 93.6 | |||||
| Gentamicin | 120 | 4 | 17 | 141 | 5 | 3.5 | 0.0 | 0.0 | 96.5 | 6 | 4.3 | 0.0 | 0.0 | 95.7 | |||||
| Total | 1,208 | 71 | 413 | 1,692 | 62 | 0 | 7 | 3.7 | 0.0 | 1.7 | 95.9 | 56 | 2 | 2 | 3.3 | 0.2 | 0.5 | 96.5 | |
| Nonfermenters | Piperacillin | 13 | 2 | 7 | 22 | 1 | 0.0 | 0.0 | 14.3 | 95.5 | 1 | 4.5 | 0.0 | 0.0 | 95.5 | ||||
| Piperacillin-tazobactam | 18 | 0 | 4 | 22 | 1 | 4.5 | 0.0 | 0.0 | 95.5 | 2 | 9.1 | 0.0 | 0.0 | 90.9 | |||||
| Cefepime | 17 | 3 | 2 | 22 | 4 | 18.2 | 0.0 | 0.0 | 81.8 | 5 | 22.7 | 0.0 | 0.0 | 77.3 | |||||
| Cefotaxime | 5 | 6 | 11 | 22 | 3 | 13.6 | 0.0 | 0.0 | 86.4 | 4 | 1 | 18.2 | 0.0 | 9.1 | 77.3 | ||||
| Ceftazidime | 14 | 4 | 4 | 22 | 5 | 1 | 22.7 | 0.0 | 25.0 | 72.7 | 3 | 1 | 13.6 | 0.0 | 25.0 | 81.8 | |||
| Meropenem | 17 | 2 | 3 | 22 | 4 | 1 | 18.2 | 0.0 | 33.3 | 77.3 | 6 | 27.3 | 0.0 | 0.0 | 72.7 | ||||
| Ciprofloxacin | 11 | 2 | 9 | 22 | 2 | 9.1 | 0.0 | 0.0 | 90.9 | 1 | 4.5 | 0.0 | 0.0 | 95.5 | |||||
| Levofloxacin | 11 | 4 | 7 | 22 | 3 | 13.6 | 0.0 | 0.0 | 86.4 | 4 | 18.2 | 0.0 | 0.0 | 81.8 | |||||
| Gentamicin | 16 | 0 | 6 | 22 | 1 | 4.5 | 0.0 | 0.0 | 95.5 | 2 | 9.1 | 0.0 | 0.0 | 90.9 | |||||
| Total | 122 | 23 | 53 | 198 | 23 | 0 | 3 | 11.6 | 0.0 | 5.7 | 86.9 | 28 | 0 | 2 | 14.1 | 0.0 | 3.8 | 84.8 | |
| Staphylococci | Penicillin | 31 | 0 | 62 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | ||||||
| Oxacillin | 57 | 0 | 36 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 1 | 0.0 | 1.8 | 0.0 | 98.9 | ||||||
| Vancomycin | 93 | 0 | 0 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||
| Teicoplanin | 93 | 0 | 0 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 1 | 1.1 | 0.0 | 0.0 | 98.9 | ||||||
| Ofloxacin | 55 | 0 | 38 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 1 | 1.1 | 0.0 | 0.0 | 98.9 | ||||||
| Ciprofloxacin | 56 | 0 | 37 | 93 | 1 | 0.0 | 1.8 | 0.0 | 98.9 | 0.0 | 0.0 | 0.0 | 100.0 | ||||||
| Tetracycline | 82 | 0 | 11 | 93 | 1 | 0.0 | 0.0 | 9.1 | 98.9 | 1 | 1 | 1.1 | 0.0 | 9.1 | 97.8 | ||||
| Gentamicin | 74 | 0 | 19 | 93 | 1 | 1.1 | 0.0 | 0.0 | 98.9 | 1 | 1 | 1.1 | 1.4 | 0.0 | 97.8 | ||||
| Erythromycin | 42 | 1 | 50 | 93 | 3 | 1 | 3.2 | 0.0 | 0.0 | 95.7 | 2 | 2.2 | 0.0 | 0.0 | 97.8 | ||||
| Clindamycin | 63 | 0 | 30 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 1 | 1 | 1.1 | 1.6 | 0.0 | 97.8 | |||||
| Cotrimoxazol | 81 | 11 | 1 | 93 | 1 | 1 | 0.0 | 1.2 | 0.0 | 97.8 | 1 | 0.0 | 1.2 | 0.0 | 98.9 | ||||
| Rifampicin | 92 | 1 | 0 | 93 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||
| Total | 819 | 13 | 284 | 1,116 | 4 | 2 | 3 | 0.4 | 0.2 | 1.1 | 99.2 | 7 | 4 | 1 | 0.6 | 0.5 | 0.4 | 98.9 | |
| Enterococci | Vancomycin | 51 | 51 | 0.0 | 0.0 | 0.0 | 100.0 | 2 | 3.9 | 0.0 | 0.0 | 96.1 | |||||||
| Teicoplanin | 51 | 51 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | |||||||||
| Tetracycline | 19 | 32 | 51 | 0.0 | 0.0 | 0.0 | 100.0 | 1 | 2.0 | 0.0 | 0.0 | 98.0 | |||||||
| Total | 121 | 0 | 32 | 153 | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 100.0 | 3 | 2.0 | 0.0 | 0.0 | 98.0 | |||
| All | 2,270 | 107 | 782 | 3,159 | 89 | 4 | 13 | 2.8 | 0.2 | 1.7 | 97.0 | 94 | 6 | 5 | 3.0 | 0.3 | 0.6 | 97.0 | |
a
Abbreviations: S, susceptible; I, intermediate; R, resistant.