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Comparison of Virulence between Two Main Clones (ST11 and ST307) of Klebsiella pneumoniae Isolates from South Korea.


ABSTRACT: In this study, we investigate the characteristics of two main clones of carbapenemase-producing Klebsiella pneumoniae isolates from South Korea, ST11 and ST307, including carbapenem-susceptible isolates. Antibiotic susceptibility, serotype or wzi allelic type, the presence of virulence genes, and virulence with respect to serum resistance and macrophage internalization were determined for ST11 and ST307 isolates. ST11 isolates had a wide range of characteristics, including serotype and virulence, compared with those of homogeneous ST307 isolates. The wzi14 or K14 type had higher virulence than that of other serotypes among the ST11 isolates, and the homogeneous ST307 isolates showed similar virulence level as that of the wzi14-type ST11 isolates. Our data suggest that it is necessary to monitor not only the introduction and spread of a specific clone, but also its detailed serotype.

SUBMITTER: Cho YY 

PROVIDER: S-EPMC9504348 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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Comparison of Virulence between Two Main Clones (ST11 and ST307) of <i>Klebsiella pneumoniae</i> Isolates from South Korea.

Cho Yun Young YY   Kim Jee Hong JH   Kim Hyunkeun H   Lee Junghwa J   Im Se Jin SJ   Ko Kwan Soo KS  

Microorganisms 20220913 9


In this study, we investigate the characteristics of two main clones of carbapenemase-producing <i>Klebsiella pneumoniae</i> isolates from South Korea, ST11 and ST307, including carbapenem-susceptible isolates. Antibiotic susceptibility, serotype or <i>wzi</i> allelic type, the presence of virulence genes, and virulence with respect to serum resistance and macrophage internalization were determined for ST11 and ST307 isolates. ST11 isolates had a wide range of characteristics, including serotype  ...[more]

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