CD40LG and infection: In the present work, we demonstrate for the first time the presence of IgM and IgG isotype antibodies directed against PC and PE, the major cellular PL, as well as LPC and LPE (derived lysophospholipids), in the sera of mice infected with two T. cruzi strains belonging to different DTUs, during the acute and chronic phases of infection, with high titres persisting in the latter.