The levels of inflammatory cytokines/chemokines such as IL-8, IL-15, IL-10, GM-CSF, IL-6, Eotaxin and Eotaxin-3 were increased in the bloodstream of SOT COVID-19 patients who eventually developed severe disease/died but showed a modest discriminatory performance to distinguish mild/moderate to severe disease. This evidence concerns the gene CCL26 and COVID-19.