TABLE 1.
Distribution of the regions and ceftazidime-avibactam MICs of the KPC-KP.
| Regions | No. (%) of K. pneumoniae | No. (%) of KPC-KP |
No. (cumulative %) of KPC-KP inhibited at ceftazidime-avibactam MIC (μg/ml) |
MIC50 (μg/ml) | MIC90 (μg/ml) | |||||||
| ≤0.125/4 | 0.25/4 | 0.5/4 | 1/4 | 2/4 | 4/4 | 8/4 | 16/4 | |||||
| Beijing | 43 (7.0) | 34 (79.1) | – | 3 (8.8) | 4 (20.6) | 16 (67.6) | 5 (82.4) | 3 (91.2) | 3 (100.0) | – | 1/4 | 2/4 |
| Chengdu | 226 (36.7) | 97 (42.9) | 2 (2.1) | 6 (8.2) | 10 (18.6) | 38 (57.7) | 41 (100) | – | – | – | 1/4 | 2/4 |
| Guangzhou | 90 (14.6) | 49 (54.4) | – | 4 (8.2) | 2 (12.2) | 20 (53.1) | 21 (95.9) | 2 (100.0) | – | 1/4 | 2/4 | |
| Kunming | 148 (24.0) | 119 (80.4) | 3 (2.5) | 1 (3.4) | 6 (8.4) | 68 (65.5) | 38 (97.5) | – | 2 (99.2) | 1 (100.0) | 1/4 | 2/4 |
| Yinchuan | 62 (10.1) | 23 (37.1) | – | 1 (4.3) | 4 (21.7) | 6 (47.8) | 12 (100.0) | – | – | – | 2/4 | 2/4 |
| Suzhou | 47 (7.6) | 25 (53.2) | 1 (4.0) | 1 (8.0) | 4 (24.0) | 13 (76.0) | 5 (96.0) | 1 (100.0) | – | – | 1/4 | 2/4 |
| Total | 616 (100.0) | 347 (56.3) | 6 (1.7) | 16 (6.3) | 30 (15.0) | 161 (61.4) | 122 (96.5) | 6 (98.3) | 5 (99.7) | 1 (100.0) | 1/4 | 2/4 |
–, no isolates.