CD40LG and tuberculosis: To evaluate whether the detection of whole antibodies would improve the sensitivities of the polyprotein, a panel of 48 serum samples from patients with TB and 16 serum samples from healthy individuals were independently collected and horseradish peroxidase (HRP)-labeled LD5 (HRP-LD5) was used to detect human IgG, IgM, and IgA.