Table 4 Antibiotic resistance of ESBL-producing E. coli and K. pneumoniae strains
Antibiotic group | Antibiotics (concentration in µg) | Resistance to the antibiotic | |
|---|---|---|---|
E. coli | K. pneumoniae | ||
n (%) | n (%) | ||
Penicillin, penicillin and inhibitors | Ampicillin (10) | 97(100) | 61(100) |
Piperacillin (100) | 97(100) | 60(100) | |
Amoxicillin + acid clavulanic (30) | 71(65.74) | 37(61.67) | |
Piperacillin + Tazobactam (110) | 70(65.42) | 27(45.76) | |
Cephalosporin | Cefazolin (30) | 97(100) | 60(100) |
Cefuroxime (30) | 95(100) | 56(100) | |
Ceftriaxone (30) | 95(100) | 60(100) | |
Ceftazidime (30) | 95(100) | 60(100) | |
Cefepime (30) | 95(100) | 55(98.21) | |
Cefoxitin (30) | 43(40.57) | 14(23.73) | |
Monobactam | Aztreonam (30) | 92(94.85) | 53(94.64) |
Carbapenem | Meropenem (10) | 17(15.74) | 5(8.19) |
Imipenem (10) | 22(20.75) | 5(8.19) | |
Ertapenem (10) | 35(32.71) | 11(18.33) | |
Aminoglycosides | Gentamycin (10) | 46(44.66) | 31(5082) |
Amikacin (30) | 7(6.93) | 8(13.11) | |
Tobramycin (10) | 74(71.15) | 35(57.37) | |
Kanamycin (30) | 65(71.43) | 35(77.77) | |
Macrolides | Azithromycin (15) | 68(68.69) | 21(35.59) |
Quinolones, fluoroquinolones | Ciprofloxacin (5) | 98(95.15) | 56(91.80) |
Ofloxacin (5) | 59(67.05) | 11(24.44) | |
Levofloxacin (5) | 71(71.72) | 32(53.33) | |
Pefloxacin | 58(100) | 57(93.44) | |
Nalidixic acid (30) | 99(94.29) | 40(88.89) | |
Norfloxacin (30) | 68(80.95) | 30(50.0) | |
Cyclins | Tetracycline (30) | 80(86.02) | 36(78.26) |
Doxycycline (30) | 70(67.31) | 37(60.66) | |
Sulfonamides | Sulfamethoxazole (50) | 73(93.59) | 23(100) |
Sulfamethoxazole + trimethoprim (25) | 94(89.52) | 52(88.14) | |
Nitrofurans | Nitrofurantoin (300) | 42(40) | 24(40) |
Phosphonic acid | Fosfomycin (200) | 12(11.43) | 36(61.02) |