Production of IL-4 and IFN-γ from CD4+ T cells after antigen presentation cell assay. Production of IL-4 (A) and IFN-γ (B) analysed from supernatants during APCA. CD4+ T cells were cultured with autologous irradiated PBMC and antigen presentation of rFhCB3 and rFhCL2 were analysed in uninfected (G3) and infected sheep at 16 dpi (G4) and 23 wpi (G5). Each column represents mean values per group (± SD), bars indicate standard error. No IL-4 production was detected as results were below the detectable limits of ELISA. No significant differences were detected between groups for IFN-γ production.