Table 1. Antimicrobial susceptibility in invasive isolates of Escherichia coli, Spain, 2001–2003*.
| Antimicrobial agent | N | S (%) | I (%) | R (%) |
|---|---|---|---|---|
| Ampicillin | 7,098 | 2,884 (40.6) | 34 (0.5) | 4,180 (59.9) |
| Cefotaxime | 7,098 | 6,830 (96.7) | 19 (0.3) | 215 (3.0)† |
| Ceftazidime | 5,960 | 5,751 (96.5) | 10 (0.2) | 199 (3.3)‡ |
| Ciprofloxacin | 7,078 | 5,673 (80.1) | 33 (0.6) | 1,372 (19.3) |
| Gentamicin | 7,074 | 6,558 (92.7) | 34 (0.5) | 482 (6.8) |
| Cotrimoxazole | 6,597 | 4,432 (67.2) | 11 (0.2) | 2,154 (32.6) |
| Tobramycin | 6,135 | 5,688 (92.7) | 122 (2.0) | 325 (5.3) |
*S, susceptible; I, intermediate; R, resistant. †204 extended-spectrum β-lactamase (ESBL) producers. ‡185 ESBL producers.