Detection of Brucella canis infection in dogs by blood culture and bacterial identification using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry

J Vet Diagn Invest. 2017 Jul;29(4):586-588. doi: 10.1177/1040638717704652. Epub 2017 Apr 5.

Abstract

Brucella canis was recovered from dogs that were canine brucellosis suspect by blood culture using a modified lysis method. Organism identity was established by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The instrument-provided security library identified the isolates as Brucella species. The isolates were further identified as B. canis with the help of phenotypic and genotypic characteristics. The mass spectral profiles from characterized B. canis isolates, when added to the MALDI-TOF MS standard reference library, allowed successful presumptive identification of B. canis.

Keywords: Blood culture; Brucella canis; dogs; lysis; mass spectrometry.

MeSH terms

  • Animals
  • Blood Culture / methods
  • Blood Culture / veterinary*
  • Brucella canis / isolation & purification*
  • Brucellosis / diagnosis
  • Brucellosis / microbiology
  • Brucellosis / veterinary*
  • Dog Diseases / diagnosis*
  • Dog Diseases / microbiology
  • Dogs
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / veterinary*