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Euro Surveill. 2017 Aug 3;22(31). pii: 30587. doi: 10.2807/1560-7917.ES.2017.22.31.30587.

Plasmid-borne colistin resistance gene mcr-3 in Salmonella isolates from human infections, Denmark, 2009-17.

Author information

1
Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.

Abstract

This report describes one Salmonella isolate harbouring both mcr-1 and mcr-3. We also found nine other Salmonella isolates positive for the plasmid-borne colistin resistance gene, mcr-3. The strains were isolated from patients in Denmark between 2009 and 2017 and five of the patients had travelled to Asia. In addition to mcr-3, all strains were found positive for blaTEM-1, strA, strB, sul2 and tet(A) or tet(B), and most strains were positive for blaCTX-M-55 and qnrS.

KEYWORDS:

ESBL; Salmonella; antimicrobial resistance; colistin resistance; mcr-3; plasmid

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