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

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