The results showed that the absolute counts of lymphocytes, T-lymphocytes, Th cells, Tc cells, naïve CD4+ T-lymphocytes, CD4+ memory T-lymphocytes, CD4+ T-lymphocyte functional subpopulations, naive CD8+ T-lymphocytes, CD8+ memory T-lymphocytes, and CD8+ T-lymphocyte functional subpopulations of peripheral blood lymphocytes in new conjugated pneumonia patients were lower compared to healthy individuals (Figure 1(b)). The gene discussed is CD8A; the disease is pneumonia.