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Seroprevalence evolution of selected pathogens in wild boar

A total of 1279 Eurasian wild boar (Sus scrofa) sera were collected from 2000 to 2011 to reveal time changes in serum antibody prevalences against selected infectious agents (PCV2, PRRSV, HEV and Erysipelothrix rhusiopathiae.

Monday 13 February 2012 (6 years 10 months 3 days ago)
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A total of 1279 Eurasian wild boar (Sus scrofa) sera were collected from 2000 to 2011 in the Iberian Peninsula to reveal time changes in serum antibody prevalences against selected infectious agents (porcine circovirus type 2, PCV2; porcine reproductive and respiratory syndrome virus, PRRSV; hepatitis E virus, HEV; and Erysipelothrix rhusiopathiae) and to identify putative individual or population factors driving such changes.

Overall seroprevalences were 48%, 26%, 2% and 15% for PCV2, HEV, PRRSV and E. rhusiopathiae, respectively. The global observed prevalence of antibodies against PCV2 and HEV remained stable during the study period, while the global mean antibody seroprevalence against E. rhusiopathiae declined. The mean increment in prevalence was always lower for open than for fenced sites.

This study evidenced for the first time that wild boar from the Iberian Peninsula have widespread contact with E. rhusiopathiae, and confirmed high prevalences of antibodies against PCV2 and HEV. Maintained high prevalences of transmissible agents in wild boar suggest that epidemiological drivers such as aggregation and high density are still acting. This will most probably also affect the transmission rates of other disease agents and should be taken into account regarding disease control at the wildlife-livestock interface.

Boadella M, Ruiz-Fons JF, Vicente J, Martín M, Segalés J, Gortazar C. Seroprevalence Evolution of Selected Pathogens in Iberian Wild Boar.Transbound Emerg Dis. 2011 Dec 13. doi: 10.1111/j.1865-1682.2011.01285.x.

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