Figure 2

Frequency of HLA DRB1 alleles with regard to virus serology. (A) Distribution of HLA DRB1 alleles of pAIH patients (top panel) with (HAV+) and without (HAV-) previous HAV infections or (bottom panel) with anti-PVB19 IgG positivity and those in which these antibodies were not determined (n = 25) or were negative (n = 5; n.d.) compared to the pediatric control from our previous study26. (B) Patients with aAIH with anti-HEV IgG positivity and those in which these antibodies were not determined (n = 23) or were negative (n = 5; n.d.) compared to an adult control from our previous study27 (*p < 0.05; **p < 0.01).