To determine if CD4 + and CD8 + IAV antigen-specific T cells were also modulated by CS during the infection, we measured numbers of CD4 + and CD8 + NP-specific T cells in the lung using H-2Db/NP366-374 and I-Ab/NP311-325 IAV tetramers on days 7 and 10. Here, CD8A is linked to infection.