Table 2.
Proportion of L. innocua isolates from a river basin in Taiwan showing resistance (%) to six antimicrobial agents by ERIC type.
| Cluster | Eric-Type | Antimicrobial Agents | |||||
|---|---|---|---|---|---|---|---|
| Oxacillin (2 µg/mL) | Clindamycin (2 µg/mL) | Tetracycline (16 µg/mL) | Rifampin (4 µg/mL) | Ciprofloxacin (2 µg/mL) | Trimethoprim/Sulfamethoxazole (4 µg/mL) | ||
| A-1 | ERIC 4 (n = 3) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 |
| ERIC 8 (n = 1) | 100% (4 µg/mL) | 100% (8 µg/mL) | 100% (16 µg/mL) | 0 | 100% (4 µg/mL) | 100% (4 µg/mL) | |
| ERIC 9 (n = 2) | 100% (2 µg/mL) | 0 | 0 | 0 | 50% (4 µg/mL) | 0 | |
| ERIC 17 (n = 3) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| A-2 | ERIC 1 (n = 9) | 100% (2 µg/mL) * | 0 | 100% (16 µg/mL) | 0 | 0 | 0 |
| ERIC 16 (n = 1) | 100% (2 µg/mL) | 0 | 0 | 0 | 100% (4 µg/mL) | 0 | |
| ERIC 18 (n = 1) | 100% (4 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| ERIC 19 (n = 1) | 100% (2 µg/mL) | 0 | 100% (16 µg/mL) | 0 | 0 | 0 | |
| Out-group A | ERIC 15 (n = 1) | 100% (8 µg/mL) | 100% (4 µg/mL) | 100% (16 µg/mL) | 0 | 100% (4 µg/mL) | 100% (4 µg/mL) |
| B-1 | ERIC 5 (n = 2) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 |
| ERIC 7 (n = 1) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| ERIC 12 (n = 3) | 100% (2 µg/mL) * | 0 | 100% (16 µg/mL) | 0 | 33.3% (4 µg/mL) | 0 | |
| ERIC 13 (n = 1) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| ERIC 14 (n = 1) | 100% (8 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| ERIC 21 (n = 1) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| ERIC 23 (n = 1) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 | |
| B-2 | ERIC 2 (n = 3) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 |
| Out-group B | ERIC 6 (n = 1) | 100% (2 µg/mL) | 0 | 0 | 0 | 0 | 0 |
| Total | n = 36 | 100% | 5.6% | 41.7% | 0 | 13.9% | 5.6% |
The maximum antibiotic concentration of L. innocua was attached after each strain; * One isolate was resistant to 4 µg/mL oxacillin.