Table 2.
Antibiotic Susceptibility Pattern of A. baumannii Isolates
| Antibiotic | LEV | CTZ | CFP | PIP | TGC | AMP/S | COL | CTX | SXT | AMK | CIP | IMI | MER | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Susceptibility pattern |
R N (%) |
65 (92.8) |
70 (100) |
70 (100) |
68 (97.1) |
32 (45.7) |
55 (78.6) |
2 (2.8) |
70 (100) |
67 (95.7) |
59 (84.2) |
65 (92.8) |
50 (71.4) |
52 (74.2) |
|
I N (%) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
2 (2.8) |
0 (0.0) |
3 (4.3) |
0 0.0) |
|
|
S N (%) |
5 (7.1) |
0 (0.0) |
0 (0.0) |
2 (2.8) |
38 (54.3) |
15 (21.4) |
68 (97.1) |
0 (0.0) |
3 (4.3) |
9 (12.8) |
5 (7.1) |
17 (24.2) |
18 (25.7) |
|
| Interpretive categories and MIC breakpoints (µg/mL) | R | ≥8 | ≥32 | ≥32 | ≥128 | ≥8 | ≥32/16 | ≥4 | ≥64 | ≥4/76 | 64 | ≥4 | ≥8 | ≥8 |
| I | 4 | 16 | 16 | 32–64 | – | 16/8 | – | 16–32 | – | 32 | 2 | 4 | 4 | |
| S | ≤2 | ≤8 | ≤8 | ≤16 | <8 | ≤8/4 | ≤2 | ≤8 | ≤ 2/38 | 16 | ≤1 | ≤2 | ≤2 | |
Abbreviations: LEV, levofloxacin; CTZ, ceftazidime; CFP, cefepime; PIP, piperacillin; TGC, tigecycline; Amp/S, ampicillin/sulbactam; COL, colistin; CTX, cefotaxime; SXT, trimethoprim-sulphamethoxazole; AMK, amikacin; CIP, ciprofloxacin; IMI, imipenem; MEM, meropenem; R, resistant; I, intermediate; S, susceptible.