CD40LG and infection: TORCH (toxoplasmosis, otheragents, rubella, cytomegalovirus, herpes simplex virus) screening revealedpositive herpes simplex virus (HSV), rubella virus (RV), and cytomegalovirus(CMV) IgG, but all had negative IgM titers, suggesting previous infection.Echocardiography (EchoCG) showed biatrial dilatation, diffuse LV hypokinesia withan EF of 44%, asymmetric left ventricular hypertrophy (LVH) without LV outflowtract obstruction (interventricular septum (IVS): 17 mm), and moderatepericardial effusion.