Table 2 Drug susceptibility of the isolated bacteria
Antibiotics | Drug contents (μg/piece) | Criteria for inhibition zone (mm) | Measured inhibition zone (mm) | Results | ||
|---|---|---|---|---|---|---|
Resistance (R)a | Intermediate (I)b | Sensitivity (S)c | ||||
β- lactams | ||||||
Ampicillin | 10 | ≤18 | 19–25 | ≥26 | 19.87 ± 0.23 | I |
Penicillin G | 10 IU | ≤19 | 20–27 | ≥28 | 28.10 ± 0.17 | S |
Amoxicillin | 20 | ≤13 | 14–17 | ≥18 | 0 | R |
Cephalothin | 30 | ≤14 | 15–17 | ≥18 | 25.03 ± 0.06 | S |
Cefazolin | 30 | ≤14 | 15–17 | ≥18 | 24.00 ± 0.10 | S |
Cephradine | 30 | ≤14 | 15–17 | ≥18 | 29.10 ± 0.17 | S |
Cefuroxime | 30 | ≤14 | 15–22 | ≥23 | 27.00 | S |
Cefotaxime | 30 | ≤25 | 26–27 | ≥28 | 0 | R |
Ceftriaxone | 30 | ≤25 | 26–27 | ≥28 | 26.07 ± 0.12 | I |
Aminoglycosides | ||||||
Amikacin | 30 | ≤14 | 15–16 | ≥17 | 0 | R |
Streptomycin | 10 | ≤11 | 12–14 | ≥15 | 0 | R |
Kanamycin | 30 | ≤13 | 14–17 | ≥18 | 0 | R |
Macrolides | ||||||
Erythromycin | 15 | ≤13 | 14–22 | ≥23 | 0 | R |
Roxithromycin | 15 | ≤13 | 14–22 | ≥23 | 0 | R |
Acetylspramycin | 30 | ≤13 | 14–22 | ≥23 | 0 | R |
Tetracyclines | ||||||
Tetracycline | 30 | ≤18 | 19–22 | ≥23 | 2.93 ± 0.06 | R |
Minocycline | 30 | ≤14 | 15–18 | ≥19 | 8.90 ± 0.17 | R |
Doxycycline | 30 | ≤12 | 13–15 | ≥16 | 2.00 | R |
Quinolones | ||||||
Ofloxacin | 5 | ≤12 | 13–15 | ≥16 | 0 | R |
Ciprofloxacin | 5 | ≤15 | 16–20 | ≥21 | 0 | R |
Norfloxacin | 10 | ≤12 | 13–16 | ≥17 | 0 | R |
Enrofloxacin | 10 | ≤12 | 13–16 | ≥17 | 0 | R |
Lincomycin | 2 | ≤14 | 15–20 | ≥21 | 10.97 ± 0.06 | R |
Macrodantin | 300 | ≤14 | 15–16 | ≥17 | 0 | R |
Rifampicin | 5 | ≤16 | 17–18 | ≥19 | 17.67 ± 0.58 | I |