Figure 3From: GM-CSF and IL-2 as adjuvant enhance the immune effect of protein vaccine against foot-and-mouth diseaseELISA analysis of Sera IgG level. Sera IgG production profile after immunization antibody were analyzed as described in material and methods. The IgG level was determined using ELISA and expressed as OD 450/OD 630. A: Sera IgG level after first immunization, B: Sera IgG level after second immunization, C: Sera IgG level after third immunization.Back to article page