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. 2020 Aug 22;71(5):1331-1333.
doi: 10.1093/cid/ciz1172.

Outbreak of an Uncommon Rifampin-resistant blaNDM-1Citrobacter amalonaticus Strain in a Digestive Rehabilitation Center: The Putative Role of Rifaximin

Guilhem Royer  1   2 , Fréderic Fourreau  1 , Camille Gomart  1 , Audrey Maurand  1 , Bruno Hacquin  1 , David Ducellier  1 , Florence Cizeau  1 , Stéphane Lo  1 , Catherine Cordonnier-Jourdin  3 , Mélanie Mercier-Darty  1   4 , Jean-Winoc Decousser  1   5
Affiliations

Outbreak of an Uncommon Rifampin-resistant blaNDM-1Citrobacter amalonaticus Strain in a Digestive Rehabilitation Center: The Putative Role of Rifaximin

Guilhem Royer et al. Clin Infect Dis. .

Abstract

We describe a sudden 2-week outbreak due to a blaNDM-1Citrobacter amalonaticus strain in a 22-bed digestive rehabilitation center. Three of the 5 colonized patients received long-term rifaximin treatment to prevent hepatic encephalopathy. The strains were genotypically identical, phenotypically resistant to rifampin, and harbored arr-3, a rifampin adenosine diphosphate-ribosyl transferase.

Keywords: Citrobacter; rifaximin; CPE; NDM; rifampin.

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