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Route of BCG administration in possums affects protection against bovine tuberculosis

Aldwell, F.E. ; Keen, D.L. ; Stent, V.C. ; Thomson, A. ; Yates, G.F. ; de Lisle, G.W. ; Buddle, B.M.

New Zealand veterinary journal, 1995-12, Vol.43 (7), p.356-359 [Periódico revisado por pares]

England: Taylor & Francis Group

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  • Título:
    Route of BCG administration in possums affects protection against bovine tuberculosis
  • Autor: Aldwell, F.E. ; Keen, D.L. ; Stent, V.C. ; Thomson, A. ; Yates, G.F. ; de Lisle, G.W. ; Buddle, B.M.
  • É parte de: New Zealand veterinary journal, 1995-12, Vol.43 (7), p.356-359
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The Australian brushtail possum (Trichosurus vulpecula) is the major wildlife reservoir of Mycobacterium bovis in New Zealand. Control of bovine tuberculosis in farmed animals requires measures to reduce the transmission of M. bovis from wildlife. Possums were vaccinated with BCG intranasally by aerosol spray, orally or subcutaneously to compare the efficacy of these three routes on protection against challenge with virulent M. bovis. Possums vaccinated with BCG by the intranasal or subcutaneous routes had a marked reduction in severity of disease compared to possums which had been unvaccinated or orally vaccinated. The severity of the disease was assessed by changes in body weight and pathology. BCG vaccination by all three routes resulted in reduced dissemination of M. bovis to the spleen and liver following challenge. Intranasal and oral BCG vaccination induced lower mean peripheral blood lymphocyte blastogenic responses to bovine PPD than subcutaneous vaccination, indicating that these responses did not correlate well with protection from the disease. Given a suitable delivery system, aerosol vaccination of possums, used in coniunction with other control measures, may be a suitable method of reducing the spread of M. bovis from wildlife to domestic animals.
  • Editor: England: Taylor & Francis Group
  • Idioma: Inglês
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