Table 2. IC50 values, genotyping results and CarO variants for A. baumannii isolates from Serbia.
| Isolate | Piperacilin (μg/ml) | Piperacilin/Tazobactam(μg/ml) | Ceftazidime(μg/ml) | Aztreonam(μg/ml) | Imipenem(μg/ml) | Pulsotype | CarO group/variant |
|---|---|---|---|---|---|---|---|
| 1865/12 | 194.99 ± 0.74 | 110.93 ± 8.15 | 209.07 ± 20.41 | 11.68 ± 0.97 | >16 | C | I/1 |
| 1950/12 | > 256 | 221.44 ± 7.13 | 93.87 ± 3.28 | 11.95 ± 1.29 | >16 | B | I/1 |
| 6120/13 | > 256 | 195.20 ± 9.96 | 180.48 ± 1.81 | 20.48 ± 2.64 | >16 | B | I/1 |
| 6000 | 123.20 ± 2.26 | 63.79 ± 9.10 | 82.56 ± 0.90 | 12.69 ± 1.72 | >16 | D | I/1 |
| 8709 | > 256 | 202.24 ± 7.24 | > 256 | 193.28 ± 7.24 | >16 | D | I/1 |
| 280FA | 132.22 ± 2.94 | 117.44 ± 1.36 | 225.71 ± 6.05 | 19.12 ± 1.24 | >16 | B | I/1 |
| 9977 | 107.95 ± 12.48 | 68.80 ± 9.50 | 31.76 ± 8.56 | 11.73 ± 2.25 | >16 | D | I/1 |
| 10061 | > 256 | 229.55 ± 8.52 | > 256 | 32.37 ± 6.98 | >16 | D | I/1 |
| 11587 | 224 ± 27.69 | 114.56 ± 3.89 | 106.05 ± 21.52 | 15.47 ± 0.72 | >16 | D | I/1 |
| 12655 | 103.36 ± 0.96 | 63.15 ± 4.89 | 76.80 ± 1.81 | 15.20 ± 1.84 | >16 | D | I/1 |
| 13056 | 99.41 ± 3.52 | 91.73 ± 1.33 | 31.47 ± 6.58 | 11.89 ± 1.18 | >16 | D | I/1 |
| 16F | > 256 | 179.84 ± 4.48 | 136.32 ± 0.91 | 16.75 ± 2.08 | >16 | A | I/1 |
| 1237 | 209.07 ± 15.16 | 111.15 ± 6.66 | > 256 | 19.04 ± 1.27 | >16 | A | I/1 |
| 8761 | > 256 | 176.43 ± 14.74 | 113.07 ± 14.46 | 13.92 ± 1.58 | >16 | D | I/1 |
| 6051/12 | > 256 | > 256 | > 256 | 183.89 ± 6.31 | >16 | D | I/3 |
| 6070/12 | > 256 | 184.74 ± 28.21 | > 256 | 207.79 ± 12.56 | >16 | C | I/3 |
| 6077/12 | > 256 | 109.01 ± 5.59 | > 256 | 193.28 ± 6.4 | >16 | C | I/3 |
| 6344/13 | 227.84 ± 1.28 | 183.04 ± 34.42 | > 256 | 46.40 ± 1.69 | >16 | B | I/3 |
| 8778 | 112,64 ± 1.86 | 88.75 ± 11.74 | 125.87 ± 21.32 | 33.55 ± 3.96 | >16 | C | I/3 |
| 10271 | > 256 | 200.45 ± 8.90 | 192.85 ± 39.33 | 50.99 ± 2.06 | >16 | B | I/3 |
| 307FA | 155.31 ± 38.41 | 106.24 ± 5.29 | 67.30 ± 0.13 | 32.64 ± 7.84 | >16 | B | I/3 |
| 4530 | 237.23 ± 13.69 | 213.33 ± 16.11 | 108.80 ± 1.81 | 51.95 ± 5.64 | >16 | B | I/3 |
| 1031 | 216.32 ± 5.12 | 100.48 ± 2.31 | 193.71 ± 10.35 | 94.40 ± 9.28 | >16 | A | I/3 |
| 1070 | > 256 | > 256 | 193.71 ± 9.69 | 62.33 ± 7.34 | >16 | A | I/3 |
| 1225 | 211.63 ± 5.77 | 205.44 ± 6.34 | 192 ± 13.36 | 73.99 ± 2.67 | >16 | A | I/3 |
| 1995/12 | > 256 | 202.24 ± 7.24 | > 256 | 193.28 ± 7.24 | >16 | C | I/3 |
| 7342 | 229.55 ± 5.33 | 195.20 ± 6.34 | > 256 | 36.91 ± 3.86 | >16 | B | 47 bp insertion |
| 4031 | 168.96 ± 25.21 | 100.16 ± 0.32 | > 256 | 14.35 ± 1.30 | >16 | B | 860 bp insertion |