Table 2.
- Comparison of the susceptibility to commonly used first-line antibiotics and chemotherapeutics of the common susceptible isolates with that of isolates producing β-lactamase (ESBL or AmpC)
| Antibiotic | Escherichia coli (n = 1578) | Escherichia coli beta lactamase positivea (n = 125) | Klebsiella pneumoniae (n = 359) | Klebsiella pneumoniae beta lactamase positivea (n = 284) | Enterobacter species (n = 186) | Enterobacter species beta lactamase positivea (n = 75) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S% | I% | R% | S% | I% | R% | S% | I% | R% | S% | I% | R% | S% | I% | R% | S% | I% | R% | |
| Fosfomycin | 97.4 | 0.8 | 1.8 | 92.0 | 1.6 | 6.4 | 85.8 | 5.6 | 8.6 | 73.6 | 14.8 | 11.6 | 86.1 | 4.8 | 9.1 | 74.7 | 9.3 | 16.0 |
| Ampicilin | 50.0 | 0.0 | 50.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 |
| Ampicilin-sulbactam | 82.4 | 0.0 | 17.6 | 0.0 | 0.0 | 100.0 | 78.3 | 0.0 | 21.7 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 |
| Cefuroxime | 97.7 | 0.0 | 2.3 | 0.0 | 0.0 | 100.0 | 92.8 | 0.0 | 7.2 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 |
| Ciprofloxacin | 80.6 | 0.3 | 19.1 | 16.0 | 0.0 | 84.0 | 84.5 | 1.2 | 14.3 | 12.0 | 0.0 | 88.0 | 88.7 | 1.1 | 10.2 | 49.3 | 8.0 | 42.7 |
| Co-trimoxazole | 71.0 | 0.4 | 28.6 | 28.0 | 0.0 | 72.0 | 80.5 | 0.3 | 19.2 | 10.2 | 0.4 | 89.4 | 84.9 | 0.0 | 15.1 | 38.6 | 2.7 | 58.7 |
| Nitrofurantoin | 97.1 | 0.0 | 2.9 | 89.6 | 0.0 | 10.4 | 76.6 | 0.0 | 23.4 | 50.0 | 0.0 | 50.0 | 65.1 | 0.0 | 34.9 | 65.3 | 0.0 | 34.7 |
abeta lactamase positive means bacterial isolates producing ESBL or AmpC beta lactamase