TABLE 1.
Isolates of GNR screened for blaIMP gene
| Organism | Phenotypea | No. of isolates tested | No. (%) of isolates positive for blaIMP |
|---|---|---|---|
| Pseudomonas aeruginosa | CAZ-R | 208 | 53 (25.5) |
| Pseudomonas aeruginosa | CAZ-S, IMP-R | 210 | 0 (0) |
| Pseudomonas aeruginosa | CAZ-S, IMP-S | 182 | 0 (0) |
| Stenotrophomonas maltophilia | CAZ-R | 167 | 0 (0) |
| Other GNF bacteria | CAZ-R | 41 | 13 (31.7) |
| Escherichia coli | CAZ-R | 10 | 0 (0) |
| Enterobacter species | CAZ-R | 298 | 0 (0) |
| Citrobacter species | CAZ-R | 125 | 1 (0.8) |
| Serratia marcescens | CAZ-R | 82 | 13 (15.9) |
| Proteus species | CAZ-R | 2 | 0 (0) |
a
R, resistant (MIC, ≥64 μg/ml); S, susceptible (MIC, ≤4 μg/ml).