IL7 and COVID-19: A study conducted in ICU and non-ICU COVID-19 patients in Wuhan, China, reported elevated levels of IL-1β, IL-7, IL-8, IL-9, IL-10, FGF, G-CSF, GM-CSF, IFN-γ, IP-10, MCP-1, MIP-1α, MIP-1β, PDGF, TNF-α and VEGF in patients compared to healthy controls (16).