Further, the presence of upregulated CORO1A (2.3‐fold), VCAM1 (1.6‐fold), FANCA (73.8‐fold) and PRDX2 (4.2‐fold) COVID‐19 patients serum indicated the increased potential T cells proliferation and differentiation (Figure 3D). This evidence concerns the gene VCAM1 and COVID-19.