Antimicrobial-Resistant from Environmental Waters in Northern Colorado.

Waterborne are a major reservoir of antimicrobial resistance (AMR), including but not limited to extended-spectrum beta-lactamase (ESBL) and carbapenemase (KPC) mechanisms. This study quantified and described ESBL- and KPC-producing in Northern Colorado from sewer water, surface water, and influent and effluent wastewater treatment sources. Total detected bacteria and abundances, and the percentages that contain ESBL and/or KPC, were compared between water sources.