A novel hypermucoviscous Klebsiella pneumoniae ST3994-K2 clone belonging to Clonal Group 86

Louise Cerdeira, Rafael Nakamura-Silva, Mariana Oliveira-Silva, Elder Sano, Fernanda Esposito, Bruna Fuga, Quézia Moura, Carlos Eduardo Saraiva Miranda, Kelly Wyres, Nilton Lincopan, André Pitondo-Silva

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Emergent hypervirulent Klebsiella pneumoniae has been responsible for severe diseases, representing a serious threat to public health. We report the whole-genome sequencing of a novel ST3994-K2 clone, a single locus variant of ST86 K2, which is considered a worrying hypervirulent clone that emerged in several parts of the world. The strain K. pneumonia Kpi144 was isolated in 2013 from a blood culture of a 69-year-old male patient admitted to a tertiary hospital in Teresina, state of Piauí, northeastern Brazil. The strain was susceptible to 41 antibiotics tested, presented hypermucoviscous phenotype, and a virulent behavior was observed in the Galleria mellonella infection model. Moreover, the virulome showed several virulence genes. To the best of our knowledge, this is the first worldwide report of a novel ST3994-K2 K. pneumoniae clone, an SLV of ST86 K2, which is considered a worrying virulent clone that has emerged in several parts of the world, including South America and Brazil.

Original languageEnglish
Article numberftab047
JournalPathogens and Disease
Volume79
Issue number8
Early online date22 Sept 2021
DOIs
Publication statusPublished - 1 Nov 2021

Keywords

  • Clonal Group 86
  • Klebsiella pneumoniae
  • ST3994
  • virulence

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