Table 1. Minimum Inhibitory Concentration for Antibiotics Used Against Extended-Spectrum Beta-Lactamase -Producing E. coli Isolates (%) a,b.
Antibiotic | 2 µg/mL | 4 µg/mL | 8 µg/mL | 16 µg/mL | 32 µg/mL | 64 µg/mL | 128 µg/mL | 256 µg/mL | 512 µg/mL |
---|---|---|---|---|---|---|---|---|---|
AN | 5 (10) | 7 (14) | 6 (12) | 5 (10) | 12 (24) | 8 (16) | 7 (14) | 0 | 0 |
Gm | 2 (4) | 2 (4) | 1 (2) | 2 (4) | 7 (14) | 9 (18) | 15 (30) | 10 (20) | 2 (4) |
CAZ | 0 | 0 | 0 | 0 | 11 (22) | 7 (14) | 20 (40) | 12 (24) | 0 |
CRO | 0 | 0 | 0 | 0 | 0 | 11 (22) | 13 (26) | 19 (38) | 7 (14) |
Cip | 0 | 1 (2) | 1 (2) | 2 (4) | 3 (6) | 12 (24) | 15 (30) | 11 (22) | 5 (10) |
a Abbreviations: AN, Amikacin; Gm, Gentamicin; CAZ, Ceftazidime, CRO, Ceftraxon and Cip, Ciprofloxacin.
b Data are presented as No. (%).