Figure 1. Parasite-reactive antibody in plasma of the evaluated individuals and its association with parasite burden.

(A) Level of IgG anti-SEA and anti-SWAP antigens estimated by ELISA assay in plasma samples from Schistosoma-infected and uninfected controls. (B) Concentration of total IgE and parasite-reactive, SEA and SWAP, IgE in plasma samples of Schistosoma-infected individuals indirectly estimated by ELISA assay in samples before and after been submitted to antigen-specific adsorption. Correlation analyses between parasite burden, estimated by the number of eggs of S. mansoni eliminated in the host feces and production of IgG anti-SEA antigens (C) and IgE anti-SEA antigens (D). Spearman correlation coefficients and p-values, are shown for each graph.