Transcriptomic analysis revealed significantly higher expression levels of Vascular Endothelial Growth Factor A (VEGFA) and Fms Related Receptor Tyrosine Kinase 1 (VEGFR1, FLT1) in the COVID‐19 group compared to the HD group, this finding was further supported by qPCR (Figure 2D). The gene discussed is FLT1; the disease is COVID-19.