Fig. 5.

The CD4⁺ T-cell response to inactivated influenza virus is not enhanced after developmental exposure to TCDD. Adult offspring of vehicle and TCDD treated dams were inoculated (intranasally) with inactivated influenza virus. Nine days later, lung-derived immune cells were stained for flow cytometry. The percentage (A, C, and E) and number (B, D, and F) of CD4⁺ T cells with an activated phenotype (A and B), Th1 cells (C and D), and Tregs (E and F) are shown. Values are means ± SE; n = offspring of 5–6 separately treated dams. *P value ≤ 0.05.