Experimental infection of turbot, Scophthalmus maximus (L.), by Aeromonas salmonicida subsp. achromogenes and evaluation of cross protection induced by a furunculosis vaccine

B. Björnsdóttir, S. Gudmundsdóttir, S. H. Bambir, B. K. Gudmundsdóttir*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Turbot was shown to be sensitive to injection challenges by Aeromonas salmonicida subsp. achromogenes (Asa). A systemic disease was induced and the bacterium was isolated from various internal organs. Histopathological changes involved haemorrhages, necrosis and degeneration in skin and muscle, haemorrhages and necrosis in kidney, degeneration in the heart muscle, and fusion of the secondary gill lamellae. A polyvalent commercial salmon vaccine, containing A. salmonicida subsp. salmonicida as one of five antigens, did not confer protection in turbot against an experimental Asa infection 13 weeks post-vaccination. Vaccination induced a significant antibody response against Asa cells but not against extracellular products of the bacterium. The results of the study indicate that Asa may be a potential threat to turbot farming and that the development of new turbot vaccines is needed.

Original languageEnglish
Pages (from-to)181-188
Number of pages8
JournalJournal of Fish Diseases
Volume28
Issue number3
DOIs
Publication statusPublished - Mar 2005

Other keywords

  • Aeromonas salmonicida subsp. achromogenes
  • Atypical furunculosis
  • Experimental infection
  • Scophthalmus maximus
  • Turbot
  • Vaccination

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