Figure 1.

Cellular immune responses and induction of sIgA by B. pertussis infection. B. pertussis infection induces innate immune cell (such as neutrophils and macrophages) activation, as well as IFN-γ-producing and IL-17-producing T cells. The Th-17 T cells are instrumental for sIgA production. The infection also results in resident memory T cells (γδ and CD4⁺ T cells).