The following blood tests all displayed negative results, including the T-cell enzyme-linked immuno-spot assay for tuberculosis, the syphilis rapid plasma reagin titer, Toxoplasma gondii IgG and IgM, cytomegalovirus (CMV) IgM, herpes simplex virus (HSV)1/2 IgM, Epstein-Barr virus (EBV)-IgM, galactomannan, 1,3-β-D-glucan, cryptococcus antigen, EBV-DNA, CMV-DNA. This evidence concerns the gene CD40LG and tuberculosis.