Table 1.
Characteristics of the isolates resistant to carbapenems obtained from feces of dogs and cats.
| Isolate | Organism | MIC of imipenem (mg/L) | MIC of meropenem (mg/L) | Resistance determinant | Dog/Cat (source) | Hospitalized | |
|---|---|---|---|---|---|---|---|
| Carpapem-resistance | Other β-lactamases | ||||||
| 1A IMI | Acinetobacter radioresistens | >32 | >32 | blaNDM-1 | blaOXA-23 | Dog | Yes |
| 87A IMI | Acinetobacter baumannii (ST2) | >32 | >32 | blaOXA-23 | blaOXA-66,blaTEM, AmpC | Cat | Yes |
| 92A IMI | Acinetobacter baumannii (ST2) | 16 | >32 | blaOXA-23 | blaOXA-66,blaTEM, AmpC | Dog | Yes |
| 108A IMI | Acinetobacter baumannii (ST2) | 16 | >32 | blaOXA-23 | blaOXA-66,blaTEM, AmpC | Cat | Yes |
| 115A IMI | Acinetobacter baumannii (ST2) | >32 | >32 | blaOXA-23 | blaOXA-66,blaTEM, AmpC | Dog | Yes |
| 213A IMI | Acinetobacter baumannii (ST2) | 16 | >32 | blaOXA-23 | blaOXA-66,blaTEM, AmpC | Cat∗ | Yes |
| 3 A IMI | Pseudomonas aeruginosa | 16 | 8 | oprD | blaSHV AmpC | Dog | Yes |
| 110A IMI | Pseudomonas aeruginosa | 16 | 4 | oprD | blaSHV CTX-M | Dog | Yes |
| 111A IMI | Pseudomonas aeruginosa | 16 | 8 | ND | blaSHV | Dog | Yes |
| 117A IMI | Pseudomonas aeruginosa | 16 | 2 | oprD | blaTEM | Dog | Yes |
| 121A IMI | Pseudomonas aeruginosa | 16 | 4 | oprD | AmpC | Dog | Yes |
| 131A IMI | Pseudomonas aeruginosa | 16 | 8 | ND | blaSHV AmpC | Cat | Yes |
| 207A IMI | Stenotrophomonas maltophilia | >32 | >32 | L1 | Dog | No | |
| 213B IMI | Stenotrophomonas maltophilia | >32 | >32 | L1 | Cat∗ | Yes | |
MIC, Minimum Inhibitory Concentration; ND, not determined; ST, Sequence type (Pasteur scheme). ∗Indicates the same animal.