CCL26 and COVID-19: Specifically, high plasma levels of IFN-λ1, IFN-γ, IL-1RA, IL-6, MCP-2, and lower levels of Eotaxin-3, IL-12p70, IL-13, MCP-4, MDC, TARC, were observed both in SOT and Non-SOT COVID-19 patients as compared to HCs.