TNF and COVID-19: Severe forms of COVID-19 are driven by a dysregulated inflammatory reaction, also called “cytokine storm”, characterized by high systemic levels of cytokines, including tumor necrosis factor α (TNFα), interleukine-1 (IL-1), interleukine-6 (IL-6), and interferon γ (IFNγ) [1,2,3,4,5,6,7].