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Vet J. 2013 Nov;198(2):541-2. doi: 10.1016/j.tvjl.2013.06.012. Epub 2013 Jul 20.

Frequency, virulence genes and antimicrobial resistance of Listeria spp. isolated from bovine clinical mastitis.

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  • 1Microbiology Division, Institute of Biological Science, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; Laboratory of Biomedical Science and Molecular Microbiology, Institute of Graduate Studies, University of Malaya, 50603 Kuala Lumpur, Malaysia. Electronic address: mordabenilofari@gmail.com.

Abstract

The aims of this study were to determine the prevalence, characteristics and antimicrobial resistance of Listeria spp. isolated from bovine clinical mastitis in Iran. Listeria spp. were detected in 21/207 bovine mastitic milk samples from dairy farms in Iran, comprising L. monocytogenes (n=17), L. innocua (n=3) and L. ivanovii (n=1). L. monocytogenes isolates were grouped into serogroups '4b, 4d, 4e', '1/2a, 3a', '1/2b, 3b, 7' and '1/2c, 3c'; all harboured inlA, inlC and inlJ virulence genes. Listeria spp. were most frequently resistant to penicillin G (14/21 isolates, 66.7%) and tetracyclines (11/21 isolates, 52.4%).

Copyright © 2013 Elsevier Ltd. All rights reserved.

KEYWORDS:

Antimicrobial resistance; Bovine mastitis; Internalin genes; Listeria spp.; Serogrouping

PMID:
23880504
[PubMed - indexed for MEDLINE]
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