|MMWR Early Release|
September 9, 2016
|Investigation of First Identified mcr-1 Gene in an Isolate from a U.S. Patient — Pennsylvania, 2016|
Kelly E. Kline, MPH; Jordan Shover; Alexander J. Kallen, MD; et al.
MMWR Morb Mortal Wkly Rep 2016;65(Early Release)
In May 2016, mcr-1-positive Escherichia coli was first isolated from a specimen
from a U.S. patient when a Pennsylvania woman was evaluated for a urinary
tract infection. Although it is not known how the patient became colonized, as
more surveillance systems with broader testing are established, it is anticipated
that mcr-1 will be identified with increasing frequency.