Affiliation:
1. U.S. Food and Drug Administration, Center for Veterinary Medicine, Office of Research, Laurel, Maryland, USA
Abstract
Reports of transmissible colistin resistance show the importance of comprehensive colistin resistance surveillance. Recently, a new allele of the mobile colistin resistance (
mcr
) gene family designated
mcr-9
, which shows variation in genetic context and colistin susceptibility, was reported. We tested over 100
Salmonella enterica
and
Escherichia coli
isolates with
mcr-9
from the National Antimicrobial Resistance Monitoring System (NARMS) in the United States for their susceptibility to colistin and found that every isolate was susceptible, with an MIC of ≤1 μg/ml.
Publisher
American Society for Microbiology
Subject
Infectious Diseases,Pharmacology (medical),Pharmacology
Cited by
89 articles.
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