Both cell populations were activated after antigen stimulation, with higher Δ activation in TB-treated patients than in Active-TB patients or in Healthy Donors, and we observed a significant difference in CD8+ T cells between TB-Treated and Active-tuberculosis (p = 0.005) or Healthy Donors (p = 0.004) (Fig. 1B and 1C). The gene discussed is CD8A; the disease is tuberculosis.