Resistance profiles and diversity of β-lactamases in Escherichia coli strains isolated from city-scale sewage surveillance in Bergen, Norway mimic clinical prevalence

  06 December 2021

The aim of this study was to examine antibiotic resistance profiles and diversity of β-lactamases in Escherichia coli present within the population and the potential spread of resistant E. coli into the receiving environment using city-scale sewage surveillance. In E. coli isolates from ECC plates without antibiotics from ten influent samples (n = 300), highest resistance was observed against ampicillin (16.6%), sulfamethoxazole (9.7%) and trimethoprim (9.0%), while in effluent samples (n = 262) it was against sulfamethoxazole (11.8%), ampicillin (11.5%) and tetracycline (8.8%). All isolates (n = 123) obtained on cefotaxime-containing plates were multidrug-resistant.


Author(s): Didrik H. Grevskott, Fatemeh Z. Ghavidel, Cecilie S. Svanevik, Nachiket P. Marathe
Clean Environment  


Unrestricted financial support by:

Antimicrobial Resistance Fighter Coalition


JSS University


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