Xanthan Gum as an Adjuvant in a Subunit Vaccine Preparation against Leptospirosis

Figure 3

Inducing the humoral immune response in hamsters immunized with different immunogens. Fifty micrograms of the recombinant protein were used. The groups of hamsters were immunized subcutaneously on day 0 and boosted after 2 weeks (day 14). Blood was collected on days 0, 14, and 28 after immunization. The specific IgG responses stimulated by the different immunogens were determined by an ELISA of the hamster serum diluted 1 : 50. The values presented are the means ± SEM for two independent experiments.