CD4 and tuberculosis: Furthermore, although TST+ healthy controls showed a lower percentage of antigen-specific CD4+IFN-γ+ cells than did clinically cured patients, they showed a higher percentage of these cells than did the active-pulmonary-TB group, but not statistically significantly (P = 0.04, Kruskal-Wallis test followed by Dunn's post hoc test), Figure 2(e).