E2 protein, including hypervariable region 1 (HVR1) in the N-terminal region, contains some epitopes that can induce neutralizing antibodies.

包括高变区的E2蛋白含有中性抗原表位，能体产生中性抗体。

After the tolerizing regimen, the host is withdrawn from the suppressive agents, but is able to maintain specific immune tolerance to the immunogenic epitopes present on the toleragen.

在方案后，将免疫抑制剂从宿主撤离，宿主仍能保持对存在于原上的免疫原性表位的特异性免疫。