TB: tuberculosis, DNA: deoxyribonucleic acid, AFB: acid-fast bacilli, MGIT: mycobacteria growth indicator tube, L-J: Löwenstein–Jensen, IgG: immunoglobulin G, IgM: immunoglobulin M, anti-HCV: anti-hepatitis C virus, HIV: human immunodeficiency virus. This evidence concerns the gene CD40LG and tuberculosis.