The emergence of hypervirulent blaNDM-1-positive Klebsiella pneumoniae sequence type 395 in an oncology hospital.
Infect Genet Evol
; 85: 104527, 2020 11.
Article
em En
| MEDLINE
| ID: mdl-32898687
Fifteen hypermucoviscous isolates (13 blaNDM-1-positive) obtained from 11 oncology patients were analyzed by whole genome sequencing, and selected isolates were assessed in a murine model of sepsis. ST395/K2 isolates harboring rmpA, rmpA2, peg-344, aerobactin, enterobactin, yersiniabactin, type I fimbriae, etc. displayed maximal virulence in the mouse lethality assay (LD50 = 102 CFU). ST147/K20 isolates lacking yersiniabactins were relatively less virulent (LD50 = 104 CFU), ST395/K2 isolates lacking rmpA, rmpA2, peg-344, and aerobactin, but harboring yersiniabactin demonstrated minimal virulence (LD50 = 105 CFU). Isolates represent various paths and stages of evolution directed towards convergence of multidrugresistant classical Klebsiella pneumoniae and hypervirulent K. pneumoniae.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Virulência
/
Beta-Lactamases
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Infecções por Klebsiella
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Farmacorresistência Bacteriana
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Klebsiella pneumoniae
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Antibacterianos
Limite:
Animals
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Humans
Idioma:
En
Revista:
Infect Genet Evol
Assunto da revista:
BIOLOGIA
/
DOENCAS TRANSMISSIVEIS
/
GENETICA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Federação Russa