Autoimmunity as the comet tail of COVID-19 pandemic

Figure 1 Immunologic pathways activated by severe acute respiratory syndrome coronavirus 2. SARS-CoV2: Severe acute respiratory syndrome coronavirus 2; TLR: Toll-like receptor; IL: Interleukin; NLRP3: Nucleotide oligomerization domain-like receptor family pyrin domain (PYD)-containing 3; NF-kB: Nuclear factor-kB; RIG-I: Retinoic-acid inducible gene I; MDA5: Melanoma differentiation-associated protein 5; IFN-I: Type I interferon; pDC: Plasmacytoid dendritic cell; MHC: Major histocompatibility complex; TCR: T cell receptor; Th: T helper; NET: Neutrophil extracellular trap.