Sucrose-fermenting Salmonella Typhimurium N23-2364: a challenge for the diagnostic laboratory

Diagn Microbiol Infect Dis. 2024 Jun;109(2):116280. doi: 10.1016/j.diagmicrobio.2024.116280. Epub 2024 Mar 20.


We describe a case of Salmonella infection caused by a sucrose-fermenting Salmonella enterica Typhimurium sequence type 12 which acquired transposon CTnscr94 carrying the sucrose operon scrKYABR. Sucrose-fermenting Salmonella are particularly challenging for culture-based detection and may lead to failure to detect Salmonella in clinical samples.

Keywords: Salmonella Typhimurium ST12; Sucrose-fermenting Salmonella; suc operon.

Publication types

  • Case Reports

MeSH terms

  • DNA Transposable Elements / genetics
  • Fermentation
  • Humans
  • Male
  • Operon
  • Salmonella Infections* / diagnosis
  • Salmonella Infections* / microbiology
  • Salmonella typhimurium* / genetics
  • Salmonella typhimurium* / isolation & purification
  • Sucrose* / metabolism


  • Sucrose
  • DNA Transposable Elements