endogenous compound; immunoglobulin G antibody; immunosuppressive agent; serum albumin; steroid; tozinameran; virus spike protein; adult; aged; antibody titer; autoimmune disease; cancer patient; comorbidity; conference abstract; controlled study; coronavirus disease 2019; diabetes mellitus; drug therapy; female; glomerulopathy; hemodialysis; hemodialysis patient; hemoglobin blood level; human; hypertension; hypertensive nephropathy; hypoalbuminemia; immune response; kidney failure; kidney polycystic disease; major clinical study; male; malignant neoplasm; nonhuman; protein domain; quantitative analysis; receptor binding; risk assessment; SARS coronavirus 2 immunology test kit; Severe acute respiratory syndrome coronavirus 2; vaccination