Table 1.
Species and carriage of carbapenemase genes of clinical carbapenem-resistant Gram-negative isolates in this study.
| Bacterial species | Total no. (percentage) | No. (percentage) of blaKPC-2-positive strains | No. (percentage) of blaNDM-positive strains |
No. (percentage) of blaOXA-232-positive strains | No. (percentage) of blaIMP-positive strains |
||||
|---|---|---|---|---|---|---|---|---|---|
| blaNDM-1 | blaNDM-4 | blaNDM-5 | blaIMP-4 | blaIMP-26 | blaIMP-30 | ||||
| E. coli | 30 (14.78%) | 17 (8.37%) | 11 (5.42%) | 0 | 1 (0.49%) | 0 | 0 | 1 (0.49%) | 0 |
| K. aerogenes | 7 (3.45%) | 6 (2.96%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| K. pnenmoniae | 134 (66.01%) | 93 (45.81%) | 18 (8.87%) | 1 (0.49%) | 0 | 7 (3.45%) | 4 (1.97%) | 0 | 10 (4.93%) |
| P. aeruginosa | 10 (4.93%) | 10 (4.93%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| S. marcescens | 10 (4.93%) | 10 (4.93%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Othersa | 12 (5.91%) | 6 (2.96%) | 7 (3.45%) | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 203 | 142 (69.95%) | 36 (17.73%) | 1 (0.49%) | 1 (0.49%) | 7 (3.45%) | 4 (1.97%) | 1 (0.49%) | 10 (4.93%) |
a
Others included K. michiganensis, E. hormaechei, P. rettgeri, R. planticola, C. freundii and C. koseri.