First evidence of KPC-producing ST258 Klebsiella pneumoniae in river water

Marko Jelić, Jasna Hrenović, Svjetlana Dekić, Ivana Goić-Barišić, Arjana Tambić Andrašević
Journal of Hospital Infection 2019 April 5
We report the first occurrence of KPC-2-producing Klebsiella pneumoniae in river water, in Croatia. In total, four KPC-2-producing K. pneumoniae isolates were analysed. All isolates shared similar genetic background belonging to ST258. Isolates displayed uniform, multiple-drug resistant profiles susceptible to colistin. blaSHV-1 , aac(3')-II, aac(6')-Ib and aph(3')-Ia genes were detected in all isolates. The blaKPC-2 gene in all isolates was localized on a single non-conjugative IncFII plasmid that varied in size (∼140, ∼230, ∼225 and ∼220 kb). K. pneumoniae was viable in river water for up to 50 days, confirming its ability to survive and disseminate in the environment.

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