Table 1.
Antibiotic Susceptibilities of Strain EcHK001 and the E. coli J53 Transconjugants
| Antimicrobial | MIC (ug/mL)/Susceptibility Result | ||
|---|---|---|---|
| EcHK001 | J53 | J53 (the Transconjugant) | |
| Ampicillin | ≥32/R | 8/S | ≥32/R |
| Ampicillin/sulbactam | ≥32/R | 4/S | ≥32/R |
| Piperacillin | ≥128/R | ≤4/S | ≥128/R |
| Piperacillin/tazobactam | ≥128/R | ≤4/S | 64/I |
| Cefazolin | ≥64/R | ≤4/S | ≥64/R |
| Cefuroxime | ≥64/R | ≤1/S | ≥64/R |
| Cefotetan | ≥64/R | ≤4/S | 32/I |
| Ceftazidime | ≥64/R | ≤1/S | ≥64/R |
| Ceftriaxone | ≥64/R | ≤1/S | ≥64/R |
| Cefepime | ≥64/R | ≤1/S | 8/I |
| Aztreonam | ≥64/R | ≤1/S | 32/R |
| Imipenem | ≥16/R | ≤0.05/S | ≥16/R |
| Meropenem | ≥16/R | ≤1/S | 8/R |
| Amikacin | 4/S | ≤2/S | ≤2/S |
| Gentamicin | ≥16/R | ≤1/S | ≤1/S |
| Tobramycin | ≥16/R | ≤1/S | ≤1/S |
| Ciprofloxacin | 1/S | ≤0.25/S | ≤0.25/S |
| Levofloxacin | 1/S | ≤0.25/S | ≤0.25/S |
| Nitrofurantoin | 128/R | ≤16/S | ≤16/S |
| Sulfamethoxazole-trimethoprim | ≥320/R | ≤20/S | ≤20/S |
Abbreviations: S, susceptible; R, resistant; I, intermediate.