Table 1.
Numbers of resistant E. coli isolates from seawater samples collected at three research bases in the Antarctic region, 2011
| Antibiotic compound or description | No. of E. coli isolates per location |
||
|---|---|---|---|
| Greenwich Island | Antarctic Peninsula | King George Island | |
| Nalidixic acid | 0 | 0 | 1 |
| Streptomycin | 1 | 1 | 2 |
| Tetracycline | 5 | 0 | 1 |
| Ampicillin | 7 | 2 | 2 |
| Trimethoprim-sulfamethoxazole | 1 | 1 | 2 |
| Susceptible to all compounds | 0 | 8 | 20 |
| Resistant to 1 compound | 1 | 1 | 1 |
| Resistant to 2 compounds | 5 | 0 | 0 |
| Resistant to 3 compounds | 1 | 1 | 1 |
| Resistant to 4 compounds | 0 | 0 | 1 |