Table 4.
Resistance to antimicrobials in ESBL/AmpC E. coli isolated from dogs’ feaces (n = 69): percentage of isolates resistant to each of the ten antimicrobials tested by MIC and occurrence of specific genes. Cefepime (FEP), cefotaxime (FOT), cefotaxime/clavulanic acid (F/C), cefoxitin (FOX), ceftazidime (TAZ), ceftazidime/clavulanic acid (T/C), ertapenem (ETP), imipenem (IMI), meropenem (MERO), temocillin (TRM).
| Antimicrobial | % of Resistant Isolates | % of Resistant Isolates with Associated Genes | |||
|---|---|---|---|---|---|
| bla CTX-M | bla SHV | bla CMY | bla TEM | ||
| FEP (n = 60) | 86.9 | 85 | 3.3 | 8.3 | 50.0 |
| FOT (n = 69) | 100 | 79.7 | 5.8 | 13.0 | 47.8 |
| F/C (n = 13) | 18.8 | 46.1 | 0 | 61.5 | 30.8 |
| FOX (n = 14) | 20.3 | 42.8 | 0 | 57.1 | 35.7 |
| TAZ (n = 62) | 89.9 | 79.0 | 6.4 | 14.5 | 46.8 |
| T/C (n = 12) | 17.4 | 41.7 | 0 | 66.7 | 25.0 |
| ETP (n = 8) | 11.6 | 50.0 | 0 | 50.0 | 37.5 |
| IMI | 0 | 0 | 0 | 0 | 0 |
| MERO (n = 1) | 1.4 | 100 | 0 | 0 | 0 |
| TRM (n = 2) | 2.9 | 50 | 0 | 50 | 0 |