Charles Louis Davis and Samuel Wesley Thompson DVM Foundation

For the Advancement of Veterinary and Comparative Pathology

info@cldavis.org | Phone: 847-367-4359 | Fax: 847-247-1869

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Pathology Image
  • SPECIES:
    • PORCINE
  • SYSTEM:
    • CARDIOVASCULAR
  • ORGAN:
    • HEART
  • DIAGNOSIS:
    • MULTIFOCAL TO COALESCING FIBRINOSUPPURATIVE TRICUSPID VALVULITIS
  • CAUSE:
    • STREPTOCOCCUS SUIS
  • CONTRIBUTOR:
    • WOLFE
  • INSTITUTION:
    • Cornell University
  • GENPATH:
    • BACTERIA
  • COMMENTS:
    • One of the most common causes of vegetative valvular endocarditis in a variety of domestic species is Streptococcus. Many species have their own particular species that will do this: pigs (S. suis), dogs (S. canis), primates,guinea pigs and humans (S. pneumoniae), horse (S. equi) and even opossums (S. viridans). It is a common pathogen whose exotoxins cause an outpouring of fibrin in potential spaces, and research into human strains of Streptococcus has identified specific cardiopathic epitopes of the streptococcal M protein. Streptococcus suis has also caused endocarditis in cattle and humans.