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Journal of Clinical Microbiology, February 2005, p. 959-961, Vol. 43, No. 2
0095-1137/05/$08.00+0 doi:10.1128/JCM.43.2.959-961.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Bacterial Genotype Affects the Manifestation and Persistence of Bovine Staphylococcus aureus Intramammary Infection
M. Haveri,1*
S. Taponen,1
J. Vuopio-Varkila,2
S. Salmenlinna,2 and
S. Pyörälä1
Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, University of Helsinki,1
Department of Microbiology, National Public Health Institute, Helsinki, Finland2
Received 12 August 2003/
Returned for modification 21 May 2004/
Accepted 16 September 2004
Two-hundred seventeen Staphylococcus aureus isolates from 116 dairy cows with intramammary infections were analyzed by pulsed-field gel electrophoresis to study the association between symptom severity, persistence of infection, and bacterial genotype. Among five main genotypes infecting 90% of the cows, one was associated with severe clinical symptoms but reduced persistence.
* Corresponding author. Mailing address: Department of Clinical Veterinary Sciences, Faculty of Veterinary Medicine, P.O. Box 57, FIN-00014 University of Helsinki, Finland. Phone: 358-9-19149536. Fax: 358-9-19149574. E-mail:
maarit.haveri{at}helsinki.fi.
Journal of Clinical Microbiology, February 2005, p. 959-961, Vol. 43, No. 2
0095-1137/05/$08.00+0 doi:10.1128/JCM.43.2.959-961.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
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