In summary, our data show strong and positive associations between helminth infections, eosinophilia, and total IgE and an inverse association between helminth infections and SPT in helminth-infected children. To our knowledge, this is the first study to show that an increasing number of helminth infections induce a dose–response effect on these
allergic inflammatory markers. Our data demonstrate also that helminth infection, and especially multiple infections,
are associated with a Th2 immune response (e.g. the production of Th2 cytokines by PBLs stimulated with helminth
antigens and peripheral blood eosinophilia) but that such infections are associated with the upregulation of a regulatory network with an increase in unstimulated IL-10 production which could play a role in the suppression of immediate hypersensitivity reactions in the skin