Antibiotic resistance of Vibrio anguillarum in relation to serovar and plasmid contents

Karl Pedersen, T. Tiainen, J. L. Larsen

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A total of 520 Vibrio anguillarum strains, isolated from fish and the environment, were tested for their sensitivity to 20 different antibiotics. Most isolates were of European origin. The results were compared with data on the O-serogroup and plasmid contents. All strains were sensitive to neomycin, spectinomycin, nitrofurantoin, flumequine and oxolinic acid, while most strains were sensitive to streptomycin, oxytetracycline, chloramphenicol, sulphonamides, trimethoprim, sulphonamides with trimethoprim, nalidixan, rifampicin, novobiocin and O/129. A major part of the strains were resistant to the macrolides, spiramycin and lincomycin. For ampicillin, cephalothin, and colistin marked differences were recorded with respect to O-serogroup. Most O1 strains were resistant to colistin and sensitive to ampicillin and cephalothin, while most O2 strains were sensitive to colistin but resistant to ampicillin and cephalothin. Some antibiotic resistant strains carried plasmids but no conjugation experiments were carried out to detect possible R factors.
Original languageEnglish
JournalACTA Veterinaria Scandinavia
Issue number1
Pages (from-to)55-64
Number of pages10
Publication statusPublished - 1995
Externally publishedYes


  • DNA
  • Drug Resistance, Microbial
  • Plasmids
  • Serotyping
  • Species Specificity
  • Vibrio
  • 9007-49-2 DNA
  • FISH
  • Facultatively Anaerobic Gram-Negative Rods Eubacteria Bacteria Microorganisms (Bacteria, Eubacteria, Microorganisms) - Vibrionaceae [06704] Vibrio anguillarum
  • Vertebrata Chordata Animalia (Animals, Chordates, Fish, Nonhuman Vertebrates, Vertebrates) - Pisces [85200] fish Pisces
  • 07510, Ecology: environmental biology - Oceanography and limnology
  • 10060, Biochemistry studies - General
  • 36002, Medical and clinical microbiology - Bacteriology
  • 38006, Veterinary science - Microbiology
  • 38504, Chemotherapy - Antibacterial agents
  • Ecology, Environmental Sciences
  • Medical Sciences
  • Biochemistry and Molecular Biophysics
  • Estuarine Ecology
  • Infection
  • Pharmacology
  • Veterinary Medicine


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