FIG. 1.

Percentages of IFN-γ⁺ cells in CD4 and CD8 T cells and CD56^bright and CD56^dim NK cells at day 0 (d0; baseline), day 10 (d10), and day 28 (d28) after immunization with TIV or LAIV in children aged 5 to 9 years and adults. The bars denote the GMP of IFN-γ⁺ cells as estimated by GEE regression analysis. The criteria for statistical significance were adjusted across all four cell subsets within each vaccine and age group to control the type I error rate at 5% across these multiple comparisons. **, result that remained statistically significant after the adjustment; *, result with a P value of <0.05 in an individual test but that became nonsignificant after the adjustment.