To investigate the prevalence of the recently emerging colistin resistance gene mcr-1 in Enterobacteriaceae among companion animals, we examined 566 isolates collected from cats and dogs in Beijing, China, during 2012-2016. Of these isolates, 49 (8.7%) were mcr-1-positive.
Keywords: China; Enterobacteriaceae; Escherichia coli; antimicrobial resistance; bacteria; colistin resistance; epidemiology; mcr-1; vector-borne infections; zoonoses.