Table 1

Numbers of resistant E. coli isolates from seawater samples collected at three research bases in the Antarctic region, 2011

Antibiotic compound or descriptionNo. of E. coli isolates per location
Greenwich IslandAntarctic PeninsulaKing George Island
Nalidixic acid001
Streptomycin112
Tetracycline501
Ampicillin722
Trimethoprim-sulfamethoxazole112
Susceptible to all compounds0820
Resistant to 1 compound111
Resistant to 2 compounds500
Resistant to 3 compounds111
Resistant to 4 compounds001