4.4 Article

Prevalence of aac(6′)-Ib-cr plasmid-mediated and chromosome-encoded fluoroquinolone resistance in Enterobacteriaceae in Italy

Journal

GUT PATHOGENS
Volume 3, Issue -, Pages -

Publisher

BMC
DOI: 10.1186/1757-4749-3-12

Keywords

aac(6 ')-Ib-cr; fluoroquinolones; plasmid-mediated resistance; Gram-negative

Funding

  1. Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) [FIRB-Ideas RBID082ATK]

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The spread of aac(6')-Ib-cr plasmid-mediated quinolone resistance determinants was evaluated in 197 enterobacterial isolates recovered in an Italian teaching hospital. The aac(6')-Ib-cr gene was found exclusively in Escherichia coli strains. The gene was located on a plasmid which presented additional ESBL genes. Most of the clinical strains were clonally related and displayed three point mutations at the topoisomerase level which conferred high resistance to fluoroquinolones.

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