Class 1 Integrons in Resistant<i>Escherichia coli</i>and<i>Klebsiella</i>spp., US Hospitals

Abstract

We examined Escherichia coli and Klebsiella spp. from US hospitals for class 1 integrons. Of 320 isolates, 181 (57%) were positive; association of integrons with resistance varied by drug and organism. Thus, determining integron epidemiology will improve understanding of how antibacterial resistance determinants spread in the United States.