ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; ANA: antinuclear antibodies; dsDNA: double-stranded DNA; Abs: antibodies; dRVVT: diluted Russels Viper Venom Test; Anti-phospholipid antibodies: anti-cardiolipin and antiB2-glycoprotein IgG, IgM, IgA; RPR: rapid plasma reagin; HIV: human immunodeficiency viruses; Ag/Ab: antigen/antibody; EBV VCA: Epstein-Barr virus viral capsid antigen; Hepatitis Panel: hepatitis A IgM antibody, hepatitis Bs antigen, hepatiris Bs antibody, hepatitis B core Ab, hepatitis C antibody. The gene discussed is CD40LG; the disease is hepatitis A virus infection.