Absence of PCV2 viremia in new-born pigs on 4 Dutch endemically infected sow farms

IntroductionWhereas PCV2 associated disease (PCVAD) occurs mostly in pigs of >10 weeks of age, the time of infection is usually earlier. The number of piglets born viraemic significantly influences infection dynamics and consequently the suitability of control strategies [1]. Previous studies indicated a high PCV2 prevalence at birth [2,3,4], but recent studies are scarce [5]. Objective of this study: to estimate PCV2 prevalence in new-born pigs on endemically infected farms. Materials and MethodsAssuming a beta binomial distribution of PCV2, sample size calculation resulted in sampling 8 p... Mehr ...