IGHE and infection: In fact, more prolonged follow up of the animals to ensure three cycles of infections (week 25, P2) revealed a significant increase (p<0.05) of both the serum levels of Schistosoma-egg-antigen-specific IgE (Figure 3C) and IgG1 (Figure 3D), in the groups 2°and 3°, undergoing two or three cycles of infection-treatment respectively, when compared to mice undergoing a single infection cycle (1°).