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β-Lactamase types of 520 P. mirabilis strains resistant to amoxicillin
| Phenotype (n) | Enzyme(s) | % of strains with enzyme |
|---|---|---|
| Penicillinase (407) | TEM-1 | 46 |
| TEM-2 | 18 | |
| TEM-1 + TEM-2 | 11.3 | |
| CARB-2 | 1.5 | |
| SHV-1 | 1.5 | |
| Total | 78.3 | |
| IRT/OXA (39) | IRT-13 | 2.7 |
| IRT-13 + TEM-1 | 3.4 | |
| IRT-16 | 0.4 | |
| IRT-16 + TEM-1 | 0.2 | |
| IRT-2 | 0.2 | |
| OXA | 0.6 | |
| Total | 7.5 | |
| ESBL (74) | TEM-3 | 13.6 |
| TEM-3 + TEM-1 | 0.2 | |
| TEM-3 + TEM-2 | 0.2 | |
| TEM-66 | 0.2 | |
| Total | 14.2 |
