Bluetongue epidemiology in wild ruminants from Southern Spain

  • Ignacio García
  • Sebastián Napp
  • Jordi Casal
  • Anselmo Perea
  • Alberto Allepuz
  • Anna Alba
  • Alfonso Carbonero
  • Antonio Arenas
Original Paper

Abstract

Serum samples from 210 wild ruminants collected between 2006 and 2007 in southern Spain were tested for antibodies against bluetongue virus (BTV) by means of a competitive ELISA assay. Eighty-seven of the 210 wild ruminants analysed (41%) showed antibodies against BTV. Statistically significant differences were found in the seroprevalence among species: 66% (65 of 98) for red deer (Cervus elaphus), 50% (ten of 20) for fallow deer (Dama dama), 33% (three of nine) for mouflon (Ovis aries musimon) and 11% (nine of 83) for Spanish ibex (Capra pyrenaica). Overall, the sites where seropositive wild ruminants were found coincide with the areas where BTV had been detected in livestock, but in eastern Sierra Morena, the virus circulated in wild ruminants, although it had not been detected in domestic ruminants in the same areas. Wild ruminants over 1-year of age (sub-adults and adults) had significantly higher seroprevalences than juvenile animals. Statistically significant differences were also observed between BTV seroprevalence and management (free-ranging vs. captivity) with higher prevalence in free-ranging animals. The high seroprevalences obtained suggest that BTV is widespread in wild ruminants in southern Spain. This factor could have an important influence on the evolution of the infection in domestic livestock and indicates the need to include wild ruminant species in BTV surveillance or control programs.

Keywords

Bluetongue Serosurvey Wild ruminants Spain 

Supplementary material

10344_2008_231_MOESM1_ESM.pdf (183 kb)
ESM 1(PDF 182 KB)

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Ignacio García
    • 1
  • Sebastián Napp
    • 1
  • Jordi Casal
    • 1
    • 2
  • Anselmo Perea
    • 3
  • Alberto Allepuz
    • 1
    • 2
  • Anna Alba
    • 1
  • Alfonso Carbonero
    • 3
  • Antonio Arenas
    • 3
  1. 1.Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTACampus de la Universitat Autònoma de Barcelona, Edifici CRESABarcelonaSpain
  2. 2.Departament de Sanitat i Anatomia AnimalsUniversitat Autònoma de BarcelonaBarcelonaSpain
  3. 3.Departamento de Sanidad Animal. Facultad de Veterinaria, UCOCampus Universitarios de RabanalesCórdobaSpain

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