In addition, Huang et al. discovered that the plasmatic concentrations of interleukin (IL)-1β, IL-1ra, IL-7, IL-8, IL-9, IL-10, basic FGF, GM-CSF, G-CSF, VEGF, IP-10, MCP-1, IFN-γ, IFN-α, MIP-1α, and MIP-1β were higher in COVID-19 patients present in ICU, as well as non-ICU patients, when compared with healthy individuals [63]. This evidence concerns the gene CCL2 and COVID-19.