Table 1.
A general antibiogram showing percent antimicrobial susceptibility of all Gram-negative bacteria isolated from a veterinary teaching hospital in Indiana, the United States in 2015 and grouped at genus/species level.
| Escherichia coli | Pseudomonas spp. | Proteus mirabilis | |
|---|---|---|---|
| Number of Isolates | 100 | 27 | 26 |
| Antimicrobial | |||
| Amikacin | 99% | 100% | 92% |
| Amoxicillin/clavulanic acid | 78% | 4% | 100% |
| Ampicillin | 64% | 4% | 84% |
| Cefazolin | 79% | 4% | 88% |
| Cefovecin | 82% | 7% | 96% |
| Cefoxitin | 83% | 4% | 96% |
| Cefpodoxime | 82% | 4% | 96% |
| Ceftiofur | 79% | 7% | 96% |
| Cephalothin ** | 100% | 100% | |
| Chloramphenicol | 84% | 4% | 69% |
| Clindamycin ¥ | 2% | 4% | 0% |
| Doxycycline | 78% | 7% | 0% |
| Enrofloxacin | 85% | 70% | 92% |
| Erythromycin ¥ | 10% | 4% | 0% |
| Gentamycin | 94% | 85% | 85% |
| Imipenem | 100% | 100% | 96% |
| Marbofloxacin | 83% | 92% | |
| Oxacillin + 2%NACL | 0% | 7% | 0% |
| Penicillin | 0% | 4% | 0% |
| Ticarcillin | 64% | 100% | 85% |
| Ticarcillin/clavulanic acid | 75% | 100% | 96% |
| Trimethoprim/sulfamethoxazole | 85% | 11% | 85% |
** Number of isolates tested for cephalothin susceptibility were as follows: E. coli = 67, Proteus mirabilis = 20. ¥ indicates the drug is primarily used for Gram-positive organisms. Grey-shading indicates that susceptibility to a drug was not tested with that organism.