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Antimicrobial Agents and Chemotherapy, July 2005, p. 2997-3000, Vol. 49, No. 7
0066-4804/05/$08.00+0     doi:10.1128/AAC.49.7.2997-3000.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

In Vitro Antimicrobial Susceptibility Testing of Helicobacter felis, H. bizzozeronii, and H. salomonis

K. Van den Bulck,1* A. Decostere,1 I. Gruntar,2 M. Baele,1 B. Krt,2 R. Ducatelle,1 and F. Haesebrouck1

Department of Pathology, Bacteriology and Poultry Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium,1 Institute of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Ljubljana, Ljubljana, Slovenia2

Received 14 December 2004/ Returned for modification 24 January 2005/ Accepted 19 March 2005

The susceptibilities of Helicobacter felis (15 strains), H. bizzozeronii (7 strains), and H. salomonis (3 strains) to 10 antimicrobial agents were investigated by determination of the MIC using the agar dilution method. No consistent differences were noticed between the different Helicobacter species, which were all highly susceptible to ampicillin, clarithromycin, tetracycline, tylosin, enrofloxacin, gentamicin, and neomycin, as demonstrated by low MICs. Higher MICs were obtained for lincomycin (up to 8 µg/ml) and spectinomycin (up to 4 µg/ml). Two H. felis strains showed a MIC of 16 µg/ml for metronidazole, suggesting acquired resistance to this antimicrobial agent.


* Corresponding author. Mailing address: Department of Pathology, Bacteriology and Poultry Diseases, Ghent University, Faculty of Veterinary Medicine, Salisburylaan 133, B-9820 Merelbeke, Belgium. Phone: 32 (0)9 264 74 36. Fax: 32 (0)9 264 74 94. E-mail: kathleen.vandenbulck{at}UGent.be.


Antimicrobial Agents and Chemotherapy, July 2005, p. 2997-3000, Vol. 49, No. 7
0066-4804/05/$08.00+0     doi:10.1128/AAC.49.7.2997-3000.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.




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