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Long-Term Surveillance of Aujeszky's Disease in the Alpine Wild Boar (Sus scrofa). | LitMetric

Long-Term Surveillance of Aujeszky's Disease in the Alpine Wild Boar (Sus scrofa).

Ecohealth

Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER) "Bruno Ubertini", Via Bianchi 7/9, 25124, Brescia, Italy.

Published: December 2015

AI Article Synopsis

  • Wild boar can be a persistent reservoir for Aujeszky's disease (AD), but there's limited research on its long-term spread in areas with few industrial pig farms.
  • A study analyzed 3260 wild boar sera over eight hunting seasons, finding a 4.97% positive rate for AD; factors like age and year influenced this rate, while overall wild boar abundance and pig farm numbers did not.
  • The research revealed an increasing trend in seroprevalence from 2.1% to 10.8% over the years, particularly in older boars, suggesting that AD seropositivity is not linked to the presence of nearby pigs.

Article Abstract

Although wild boar can act as a persistent Aujeszky's disease (AD) reservoir, limited data are available on long-term epidemiology in free-ranging wild boar living in areas where industrial swine herds are limited. Hence, this study provides crucial information, which fills this knowledge gap, on the natural dynamics of AD infection. From 3260 sera sampled during eight hunting seasons, 162 (4.97%) were tested positive. Factors, including the animal's age class, and the sampling year, had significant effects on the probability of the wild boar being seropositive, while wild boar mean abundance per area, yearly abundance and the total number of pig farms, as well as interactions among age, year and sex, were not significant. In particular, a positive trend of seroprevalence was observed over the years, with values ranging from 2.1 to 10.8%. This long-term surveillance showed an increase in seroprevalence with a higher probability of being seropositive in older individuals and the independence of wild boar seropositivity from the likelihood of contact with pigs in the area.

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Source
http://dx.doi.org/10.1007/s10393-015-1064-xDOI Listing

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