CD8A and cancer: Compared with Omicron-infected non-cancer-afflicted subjects, total T-cell count (Figure 2A), total T cell% (Figure 2B), CD4+ T-cell count (Figure 2C), and CD8+ T-cell count (Figure 2E) in Omicron-infected cancer patients were decreased (P <0.0001, P <0.001, P <0.0001, and P <0.001), while total B cell% (Figure 2I) was increased (P <0.01).