Table 1.
Antibiogram of the nine Escherichia coli isolates with transferable resistance to extended spectrum cephalosporins isolated from raw food diets for dogs
| Resistance pattern | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
||||||||||||||
| Isolate | Am | Ctx | Caz | Ci | Nal | Gm | Sm | Tc | Ff | Cs | Su | Trim | Cm | Km |
| 1 | 64 | >2 | 8 | 0.06 | 4 | 1 | 16 | ≤1 | 8 | ≤0.5 | 16 | 0.25 | 4 | ≤8 |
| 2 | 128 | >2 | 8 | 0.06 | 2 | 1 | 8 | ≤1 | ≤4 | ≤0.5 | 32 | 0.25 | ≤2 | ≤8 |
| 3 | 128 | >2 | 8 | 0.06 | 2 | 0.5 | 8 | ≤1 | ≤4 | ≤0.5 | 16 | 0.5 | 4 | ≤8 |
| 4 | 64 | >2 | 4 | 0.06 | 2 | 1 | 8 | ≤1 | ≤4 | 1 | ≤8 | 0.25 | 4 | ≤8 |
| 5 | 64 | >2 | 8 | 0.06 | 4 | 1 | 8 | ≤1 | ≤4 | 2 | 16 | 0.5 | 4 | ≤8 |
| 6 | 64 | >2 | 16 | 0.06 | 2 | 1 | 8 | ≤1 | ≤4 | 2 | 16 | 0.5 | 4 | ≤8 |
| 7 | >128 | >2 | >16 | 0.06 | 4 | 1 | 8 | ≤1 | ≤4 | 1 | ≤8 | 0.5 | 4 | ≤8 |
| 8 | 128 | >2 | 8 | 0.06 | 2 | 1 | 8 | 2 | 8 | 1 | 16 | 0.5 | 4 | ≤8 |
| 9 | 64 | >2 | 4 | 0.06 | 4 | 0.5 | 8 | ≤1 | 8 | 1 | 16 | 0.25 | 4 | 16 |
Bold and shaded figures indicate MIC above the epidemiological cut-off values issued by EUCAST (www.eucast.org, retrieved 2015-09-17).
Antimicrobials included and cut-off values (mg/L) used are ampicillin (Am, >8), cefotaxime (Ctx, >0.25), ceftazidime (Caz, >0.5), ciprofloxacin (Ci, >0.06), nalidixic acid (Nal, >16), gentamicin (Gm, >2), streptomycin (Sm, >16), tetracyclin (Tc, >8), florfenicol (Ff, >16), coliston (Cs, >2), sulfamethoxazole (Su, >64), trimetoprim (Trim, >2), chloramphenicol (Cm, >16), kanamycin (Km, >8).