Additional file 2: Figure S2. of Low levels of antibodies against common viruses associate with anti-citrullinated protein antibody-positive rheumatoid arthritis; implications for disease aetiology

Correlation between anti-EBV (left panel), anti-B19 (middle panel) and anti-CMV (right panel) IgG levels and IgM rheumatoid factor (RF) levels in all patients with RA (upper row), ACPA-positive patients with RA (middle row) and ACPA-negative patients with RA (lower row). (EPS 1873 kb)