Significant expansions of type 2 IL-4– and IL-13–secreting CD4+ T cells were observed in sdLN single-cell suspensions derived from BmL3-infected mice at 14 dpi and CD4+ secretion levels of the regulatory-type cytokine IL-10 was also increased, while local secretion levels of the type 1 cytokine IFN-γ remained unaltered following infection (Figure 3, E and F). Here, CD4 is linked to infection.