Figure 6From: Chitosan microparticles loaded with yeast-derived PCV2 virus-like particles elicit antigen-specific cellular immune response in mice after oral administrationIFN-γ levels in the supernatants of splenocytes harvested from immunized mice. Splenocytes were isolated 8 weeks after the first immunization and re-stimulated in vitro with porcine circovirus type 2 virions. IFN-γ levels in the supernatant were analysed in a mouse IFN-γ enzyme-linked immunosorbent assay. Data represent the mean ± standard deviation of triplicate wells.Back to article page