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SENTRY Surveillance program confirms second mcr-1 gene in U.S. organism

Colistin-resistant gene detected in the U.S. for the second time (

The research, the most comprehensive and contemporary surveillance data for mcr-1 to date, is published July 11 in Antimicrobial Agents and Chemotherapy, a journal of the American Society for Microbiology.  Full study can be viewed here.


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Organisms Collected Annually


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In Vitro Activity

Microbiology and testing assays to characterize the spectrum of activity of a candidate compound.

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Antimicrobial Surveillance

Global monitoring studies to track changes in resistance profiles over time through the yearly collection of thousands of bacterial and fungal isolates tested against new candidate compounds and marketed antimicrobial agents. Utilized to support new drug approval submissions as well as phase IV post-marketing support programs.

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Genetic and Molecular Studies

Special assays to determine causes of resistance and defining these mechanisms through genetic characterization testing.

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Clinical Trial Support

Perform susceptibility and molecular testing and provide data transfers of test results in support of clinical trials.

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Medical Writing

Author medical publications (reports / abstracts / posters / manuscripts) for companies to utilize this information in pursuit of new drug applications and / or to publish the testing results to the scientific community.

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