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Review
. 2020 May 21;S0966-842X(20)30105-0.
doi: 10.1016/j.tim.2020.04.012. Online ahead of print.

Carbapenem Resistance-Encoding and Virulence-Encoding Conjugative Plasmids in Klebsiella Pneumoniae

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Review

Carbapenem Resistance-Encoding and Virulence-Encoding Conjugative Plasmids in Klebsiella Pneumoniae

Xuemei Yang et al. Trends Microbiol. .

Abstract

Klebsiella pneumoniae has an exceptional ability to acquire exogenous resistance-encoding and hypervirulence-encoding genetic elements. In this review we trace the key evolutionary routes of plasmids involved in the dissemination of such elements; we observed diverse, but convergent, evolutionary paths that eventually led to the emergence of conjugative plasmids which simultaneously encode carbapenem resistance and hypervirulence. One important evolutionary feature of these plasmids is that they contain a wide range of transposable elements that enable them to undergo frequent genetic transposition, resulting in plasmid fusion and presumably better adaptation of the plasmid to the bacterial host. Identifying the key molecular markers of resistance and virulence-bearing conjugative plasmids allows improved tracking and control of the life-threatening carbapenem-resistant and hypervirulent strains of K. pneumoniae.

Keywords: Klebsiella pneumoniae; bla(KPC)-bearing plasmid; conjugative; hypervirulence plasmid; transmission.

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