Figure 6From: A novel recombinant pseudorabies virus expressing parvovirus VP2 gene: Immunogenicity and protective efficacy in swineImmunogenicity of PRV SA215/VP2 in piglets. Four groups of piglets (n = 5 per group) were immunized with recombinant PRV SA215/VP2, vector PRV SA215, inactivated PPV vaccine and PBS. Data represent the mean antibody titer of each group of piglets determined by indirect ELISA at 0, 14, 28, 42 and 56 d. The horizontal line represents cut-off value.Back to article page