CD40LG and rheumatoid arthritis: Analyzing the two groups of patients separately (RA-A and RA-B), seroprevalence of anti-VCA IgM and anti-EA(D) IgM showed a significant reduction in RA-A patients (p = 0.022 and p = 0.022, respectively), while a significant decrease in anti-EA(D) IgG seroprevalence was detected in the RA-B subgroup (p = 0.021) during the 6-Month follow-up.