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)). This evidence concerns the gene CD8A and susceptibility to pneumonia measurement.