Science and Research

Whole-genome sequencing disproves two suspected transmission events of bla(NDM) between Pseudomonas aeruginosa and Enterobacterales in hospitalized patients

New Delhi metallo-β-lactamase (bla(NDM)) acquisition by Gram-negative bacteria is a primary concern due to its broad-host-range distribution. This study investigated two potential in-vivo horizontal gene transfers (HGTs) of bla(NDM) between Enterobacterales and Pseudomonas aeruginosa, initially indicated by polymerase chain reaction. Whole-genome sequencing showed independent parallel acquisition of two different bla(NDM) variants (NDM-1 and NDM-5) in P. aeruginosa and Enterobacterales, respectively. The data show that short-read sequencing provides the necessary resolution to confirm or dispute HGT by the comparison of genetic elements surrounding the gene of interest, and thus provide a timely response to potential outbreaks.

  • Kocer, K.
  • Boutin, S.
  • Probst, K.
  • Heeg, K.
  • Nurjadi, D.

Keywords

  • Aged
  • Anti-Bacterial Agents/pharmacology
  • Coinfection/*microbiology
  • Drug Resistance, Multiple, Bacterial/*genetics
  • Enterobacteriaceae/drug effects/*genetics
  • *Gene Transfer, Horizontal
  • Gram-Negative Bacterial Infections/microbiology
  • Hospitalization
  • Humans
  • Male
  • Middle Aged
  • Plasmids/genetics
  • Pseudomonas Infections/microbiology
  • Pseudomonas aeruginosa/drug effects/enzymology/*genetics
  • Retrospective Studies
  • Whole Genome Sequencing
  • beta-Lactamases/genetics
  • Horizonal gene transfer
  • Multi-drug-resistant organism
  • Outbreak management
  • Plasmid
  • Whole-genome sequencing
  • bla(NDM)
Publication details
DOI: 10.1016/j.jhin.2020.07.006
Journal: J Hosp Infect
Pages: 372-375 
Number: 2
Work Type: Original
Location: TLRC
Disease Area: PALI
Partner / Member: UKHD
Access-Number: 32652213

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