CRP and Epstein-Barr virus infection: In the bivariate analysis, which compared the profile of EBV infection (lytic activity and latency) with the clinical and laboratory variables of patients with SLE (anti-DNA-ds, complement, age group, platelets, lymphocytes, ESS, CRP and symptoms) and treatment (pulse therapy, medications used, daily dose and duration of therapy), there was also no statistical significance between patients with active and latent EBV (Table 4).