The seven DRB1*0701 tetramer matched VC patients (VC M, VC V, VC X, VC AA, VC AD, VC AF and VC AX) had PBMC samples from at least 2 time-points, while the available chronic viremics and seronegative donors had PBMC samples from only one time-point due to limited sample availability. The gene discussed is HLA-DRB1; the disease is atrial fibrillation.