TNF and COVID-19: Plasma levels of cytokines IL-1β, IL-1RA, IL-7, IL-9, IL-10, FGF, G-CSF, GM-CSF, PDGF, VEGF, IFNγ, TNF and chemokines CXCL8, IP10, MCP1, MIP1α, MIP1β are significantly increased in patients with COVID-19 compared to healthy individuals.