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Verrucous endocarditis associated with Streptococcus bovis in mink (Mustela vison)
  1. K. Pedersen, DVM, PhD, DrVetSci1,
  2. J. C. Jørgensen, DVM1,
  3. H. H. Dietz, DVM, PhD1 and
  4. T. H. Andersen, DVM1
  1. 1 Department of Poultry, Fish and Fur Animals, Danish Veterinary Institute, Hangøvej 2, DK-8200 Aarhus N, Denmark


Between 1998 and 2001, mortalities due to verrucous endocarditis were experienced at several mink farms. Gram-positive cocci were isolated from the endocardium of all the animals examined but not always from other internal organs. Almost all the isolates were identified as Streptococcus bovis and only a few isolates belonged to other Streptococcus species. Typing by pulsed-field gel electrophoresis of a selection of isolates revealed several patterns and several different clones. Attempts to reproduce disease by the injection of cultures of a field isolate into healthy mink failed.

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