Induction of cross-protection in mice against dolphin Erysipelothrix rhusiopathiae isolates with a swine commercial vaccine.

Erysipelothrix rhusiopathiae is well known to cause disease in dolphins. This disease occurs either in an peracute way, leading to mortality even before clinical signs are observed or in a sub-acute way, characterized by rhomboidal skin lesions, that can be treated with penicillin or its derivatives. Commercial swine vaccines, containing inactivated serotype 2 strains, are currently used for vaccination but it is not known whether these vaccines induce protection against E. rhusiopathiae isolates from dolphins. In the present study, it was demonstrated in a mouse model that vaccination with a commercial swine vaccine (Eurovac Ery, Eurovet, Belgium) containing inactivated serotype 2 E. rhusiopathiae strains induced protection against challenge with three E. rhusiopathiae isolates from dolphins. The duration of the protection varied, depending on the challenging isolate, between 8 and >23 weeks. There was however no positive correlation between the amount of antibodies at the moment of challenge and the observed protection. In conclusion, vaccination trials in mice indicate that commercial serotype 2 swine Erysipelothrix vaccines induce protection against erysipelas caused by dolphin pathogenic isolates.
AuthorsG Lacave, E Cox, J Hermans, L Devriese, B M Goddeeris
JournalVeterinary microbiology (Vet Microbiol) Vol. 80 Issue 3 Pg. 247-53 (Jun 6 2001) ISSN: 0378-1135 [Print] Netherlands
PMID11337140 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Antibodies, Bacterial
  • Bacterial Vaccines
  • Animals
  • Antibodies, Bacterial (biosynthesis, blood)
  • Bacterial Vaccines (immunology, standards)
  • Cross Reactions (immunology)
  • Dolphins (immunology, microbiology)
  • Enzyme-Linked Immunosorbent Assay
  • Erysipelothrix (immunology)
  • Erysipelothrix Infections (immunology, prevention & control)
  • Female
  • Male
  • Mice
  • Mice, Inbred BALB C
  • Swine
  • Swine Erysipelas (immunology)
  • Vaccination (veterinary)

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