ACE2 and Autoimmunity: Inflammatory cytokines release [7,8,9,10], autoimmunity involvement [11,12,13,14,15,16,17,18,19], eosinophil association [20,21,22,23,24,25], and angiotensin-converting enzyme 2 (ACE2) downregulation [26,27] have been suggested as contributing etiologies of post-vaccine adverse reactions.