Figure 3From: Co-expression of Ubiquitin gene and capsid protein gene enhances the potency of DNA immunization of PCV2 in miceCap-specific IgG isotypes induced in the pc-Cap(b) and pc-Ub-Cap(c), and control (a)groups. The results are shown as means ± SD (n = 5). The letters 'a' and 'b' above columns indicate significantly higher IgG isotype with values of P < 0.05 and P < 0.01, respectively, at the same time in a group. Mice were challenged at 18 weeks p.i.Back to article page