Figure 3: Analysis of the cellular responses. At week seven after ear infection the level of IFN- (a), IL-10 (b), and IL-4 (c) was measured by ELISA in the supernatants of spleen and retromaxillar lymph node cells cultures from both mice groups. Cells were in vitro stimulated for 48 hours with 12 g/ml of SLA or LRP and medium alone. Results are expressed as the mean±SD of twelve ears and DLN. (*).