Effect of CD4 depletion on MmmSC-induced recall proliferation (a) and IFN-γ (b) responses of pbmc collected from vaccinated animals.

Cells were incubated in the absence (NoAg) or presence of MmmSC Ags (MmmSC), or in the presence of the mitogen Concanavalin A (ConA) as a positive control. Results are expressed as mean percentages (± standard deviation) from three animals.