Fig. 6

Cytokine responses. The levels of IFN-γ (a), IL-2 (b), IL-4 (c) and IL-10 (d) from cytokine-secreting cells after immunization were determined. Significantly higher levels of IFN-γ, IL-2, IL-4 and IL-10 cytokines were produced IN VLP + CT and VLP alone groups compared to naïve controls (*P < 0.05, **P < 0.01)