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Studying the pathways of excretion of Aujeszky´s disease virus in naturally infected wild boar populations

AutorGonzález-Barrio, David ; Martín-Hernando, Mari Paz ; Gortázar, Christian ; Ruiz Fons, Francisco
Fecha de publicación2012
Citación61st WDA/10th EWDA (2012)
ResumenAujeszky’s disease virus (ADV) continues increasing its geographic range in Spanish wild boar. However, knowledge on some basic features of ADV in wild boar is scarce. We aimed to identify the ways by which ADV is excreted by infected wild boar. We selected four wild boar hunting estates in south-central Spain where ADV is endemic and surveyed 85 wild boar in the 2010/2011 hunting season. From each wild boar we collected trigeminal and sacral ganglia, oropharyngeal tonsil, blood and nasal, oral, rectal and genital swabs. Tissues and swabs were analyzed by PCR to detect ADV DNA while sera were analyzed by ELISA. Global ADV seroprevalence was 59±11%. Females and juveniles had higher seroprevalence than males and adults, respectively. The average ADV DNA prevalence in swabs was 3±3.9% while the prevalence in tissues was 40±16.7%. The prevalence of PCR-positive tonsils was 28.6±9.7% while only 13.4±20% of the trigeminal ganglia were positive. 2 of the 21 animals where sacral ganglia were analyzed were positive (9.5±12.5%). One of these animals was positive only in sacral ganglion indicating that the venereal route is possible. Approximately the 30% of infections were recent while the 17% were latent and only 1% of animals have reactivated latent infections. The presence of ADV in secretions, and thus its possible excretion in endemic populations, is low during the hunting season. Further research is needed to determine the pathogenesis of ADV in wild boar and particular epidemiological features in naturally infected populations.
DescripciónResumen del trabajo presentado a la 61st Wildlife Disease Association and 10th Biennial European Wildlife Disease Association: "convergence in wildlife health", celebrada en Lyon (Francia) del 23 al 27 de julio de 2012.
URIhttp://hdl.handle.net/10261/146779
Aparece en las colecciones: (IREC) Comunicaciones congresos
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