Bovine Staphylococcus aureus: association of virulence genes, genotypes and clinical outcome

Fournier, Christine; Kuhnert, Peter; Frey, Joachim; Miserez, Raymond François; Kirchhofer, Marc Peter; Kaufmann, Thomas; Steiner, Adrian; Graber, Hans Ulrich (2008). Bovine Staphylococcus aureus: association of virulence genes, genotypes and clinical outcome. Research in veterinary science, 85(3), pp. 439-448. London: Association for Veterinary Teaching and Research Work 10.1016/j.rvsc.2008.01.010

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Based on our clinical experience on bovine mastitis, we hypothesized that subtypes of Staphylococcus aureus (S. aureus) exist which differ in their contagious and pathogenic properties. In order to investigate this hypothesis, we analyzed strains of S. aureus isolated from spontaneous intramammary infection (IMI) with their virulence gene patterns and genotypes obtained by PCR amplification of the 16S-23S rRNA intergenic spacer (RS-PCR). The genotypes were then associated with epidemiological and clinical data including 26 herds. The results demonstrated a high association between genotypes and virulence gene patterns as well as between epidemiological and pathogenic properties of S. aureus. In particular, genotype B was related to high contagiosity and increased pathogenicity whereas the other types (C, OG) were found with infection of single cows. Because of the high clinical relevance, our results indicate the need to subtype the IMI-associated strains of S. aureus in the future.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)

UniBE Contributor:

Fournier, Christine; Kuhnert, Peter; Frey, Joachim; Miserez, Raymond François; Kirchhofer, Marc Peter; Kaufmann, Thomas; Steiner, Adrian and Graber, Hans Ulrich

Subjects:

500 Science
500 Science > 570 Life sciences; biology
600 Technology > 630 Agriculture

ISSN:

0034-5288

Publisher:

Association for Veterinary Teaching and Research Work

Language:

English

Submitter:

Peter Kuhnert-Ryser

Date Deposited:

21 Jan 2014 10:28

Last Modified:

10 Aug 2015 11:08

Publisher DOI:

10.1016/j.rvsc.2008.01.010

PubMed ID:

18358507

Uncontrolled Keywords:

Staphylococcus aureus, Virulence factors, Contagiosity, Genotypes, PCR

BORIS DOI:

10.7892/boris.39077

URI:

https://boris.unibe.ch/id/eprint/39077

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