REN and COVID-19: The results suggested that the KEGG pathways of TJQW targets against COVID-19 were mainly involved in neuroactive ligand-receptor interaction, apoptosis, renin-angiotensin system, calcium signaling pathway, arachidonic acid metabolism, vascular smooth muscle contraction, toxoplasmosis, Inflammatory mediator regulation of transient receptor potential (TRP) channels, acute myeloid leukemia, central carbon metabolism in cancer, platelet activation, and nuclear factor kappa-B (NF-κB) signaling pathway.