CD40LG and gonorrhea: Antibodies anti-TpN17 (IgG) were recorded in 3.7% of cases in patients with gonorrhea, and IgM antibodies were detected in 2.1% of cases in the group with hepatitis C. For the TmpA protein, one false-positive result (2.5%) was found in a hepatitis B virus-infected patient (Rostopira et al., 2003).