Another hallmark of severe COVID-19 is the cytokine storm associated with elevated levels of cytokines (IL1β, IL1Rα, IL2, IL6, IL7, IL10, G-CSF, TNFα), chemokines (IP10, MCP1, MIP1α) and endogenous neutrophil calprotectin (8, 10, 11). Here, TNF is linked to COVID-19.