Table 1.
Antimicrobial MICs (mg/L) and susceptible rates of 197 E. anophelis isolates determined using the agar dilution.
| Antimicrobial agent | Susceptibility testing assay | ||||
|---|---|---|---|---|---|
| Agar dilution (mg/L) | MIC range | S no. (%) | I no. (%) | R no. (%) | |
| Piperacillin | 0.5–256 | 8–>256 | 49 (24.87) | 50 (25.38) | 98 (49.75) |
| Piperacillin-tazobactam | 0.5–256+4 | 4/4–>256/4 | 67 (34.01) | 73 (37.06) | 57 (28.93) |
| Ceftazidime | 0.25–64 | 4–>64 | 1 (0.51) | 0 (0) | 196 (99.49) |
| Cefepime | 0.06–64 | 2–>64 | 2 (1.02) | 7 (3.55) | 188 (95.43) |
| Imipenem | 0.03–32 | 0.25–>32 | 1 (0.51) | 0 (0) | 196 (99.49) |
| Meropenem | 0.008–32 | 0.06–>32 | 2 (1.02) | 0 (0) | 195 (98.98) |
| Aztreonam | 0.03–64 | 32–>64 | 0 (0) | 0 (0) | 197 (100) |
| Gentamicin | 0.125–32 | 4–>32 | 7 (3.55) | 16 (8.13) | 174 (88.32) |
| Amikacin | 0.25–128 | 4–>128 | 12 (6.09) | 31 (15.74) | 154 (78.17) |
| Minocycline | 0.125–32 | 0.25–2 | 197 (100) | 0 (0) | 0 (0) |
| Doxycycline | 0.25–32 | 0.5–16 | 189 (95.94) | 7 (3.56) | 1 (0.5) |
| Tetracycline | 0.25–32 | 1–>32 | 5 (2.54) | 14 (7.1) | 178 (90.36) |
| Tigecycline | 0.015–32 | 0.5–16 | 70 (35.53) | 97 (49.24) | 30 (15.23) |
| Ciprofloxacin | 0.004–8 | 0.125–>8 | 95 (48.22) | 49 (24.88) | 53 (26.9) |
| Levofloxacin | 0.008–16 | 0.125–>16 | 150 (76.14) | 8 (4.06) | 39 (19.8) |
| Trimethoprim-sulfamethoxazole | 0.25–8+4.75–152 | 4/38–>8/152 | 2 (1.02) | 0 (0) | 195 (98.98) |
| Rifampin | 0.25–32 | 0.25–32 | 185 (93.91) | 3 (1.52) | 9 (4.57) |
| Vancomycin | 0.25–64 | 4–>64 | 1 (0.51) | 146 (74.11) | 50 (25.38) |
| Chloramphenicol | 1–64 | 8–>64 | 11 (5.58) | 73 (37.06) | 113 (57.36) |
R, resistant; S, susceptible; I, intermediate resistant.