CD40LG and toxoplasmosis: Serological tests detecting toxoplasmosis (immunoglobulin G [IgG], IgM), Venereal Disease Research Laboratory test, hepatitis B surface antigen (HBs), anti-HB core antigen antibodies, anti-hepatitis C virus antibodies, EBV antibody to viral capsid antigen (IgG, IgM), anti-human immunodeficiency virus (HIV) antibodies, anti-streptolysin O antibodies, and ANA were negative.