DNA - deoxyribonucleic Acid; EBV - Epstein-Barr vírus; ELISA - enzyme-linked immunosorbent assay; IgG - immunoglobulin G; IgM - immunoglobulin M; HIV - human immunodeficiency virus; PCR - polymerase chain reaction; RAT - rapid antigen test; RNA - ribonucleic acid; 1Laboratory cut-offs not provided; aCombined test for influenza A, influenza B, and COVID-19. The gene discussed is CD40LG; the disease is COVID-19.