CD40LG and rheumatoid arthritis: After evaluating the titer change in anti-EBV antibodies during the 6-Month follow-up, we obtained a significant decrease in anti-VCA IgM, anti-EA(D) IgG, and anti-EA(D) IgM (p = 0.006, p = 0.027, and p = 0.006, respectively) in all RA patients.