Table 4.
Multidrug resistance patterns among mcr-1-positive E. coli isolates in the present study.
| E. coli | COL | SXT | CIP | ENR | TIG | AMC | CTR | GEN | AMK | IMP | MPM | NIT | Antibiotic |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Isolate Number | Resistance (n=) | ||||||||||||
| SAUVM E1 | R | R | R | R | R | S | S | R | R | S | R | S | 8 |
| SAUVM E2 | R | R | R | S | S | R | R | R | R | S | S | S | 7 |
| SAUVM E3 | R | R | R | R | R | S | S | S | S | S | S | S | 5 |
| SAUVM E5 | R | R | R | R | R | S | S | S | S | R | R | R | 8 |
| SAUVM E6 | R | S | R | R | R | S | S | S | S | S | S | S | 4 |
| SAUVM E7 | R | R | R | R | R | S | S | S | S | R | R | S | 7 |
S = susceptible; R = resistance; COL = colistin; SXT = trimethoprim/sulfamethoxazole; CIP = ciprofloxacin; ENR = Enrofloxacin; TIG = tigecycline; AMC = amoxicillin/clavulanic acid; CTR = ceftriaxone; GEN = gentamicin; AMK = amikacin; IMP = imipenem; MPM = meropenem; NIT = nitrofurantoin; resistant if, colistin: ≥4; trimethoprim/sulfamethoxazole: ≥80; amoxicillin/clavulanic acid: ≥32; ceftriaxone: ≥4; ciprofloxacin: ≥1; gentamicin: ≥0.5; amikacin: ≥0.5; imipenem: ≥4; meropenem: ≥4; nitrofurantoin: ≥128. VITEK 2 systems version: 08.01; control: E. coli (ATCC 25922). MIC interpretation guideline/parameter set: copy of global CLSI based + natural resistance. AES parameter set: copy of global CLSI based + natural resistance.