The tracking of unswitched (IgM+IgD+), switched IgM and switched IgG MBCs among T-bethi B cells showed that the switched IgG MBCs found during AC (average 25.51%; SEM 6.02%) were further increased 3-month post-infection (average 42.39%; SEM 4.26%) and then declined to baseline levels 6 months after parasite clearance (average 25.19%; SEM 5.53%). This evidence concerns the gene CD40LG and infection.