Venn diagram analysis showed that pro-inflammatory cytokines, including CCL3, IL2RG, and TNFAIP3, were upregulated in CD4+ T cells, CD8+ T cells, and NK cells in the SEB-induced ARDS group and in the BALF of patients with the COVID-19 disease (Figure 6A). The gene discussed is CD8A; the disease is acute respiratory distress syndrome.