免疫核糖核酸（ｉＲＮＡ）的特异性免疫活性，国内外学者已进行了大量研究。鉴于ｉＲＮＡ具有超种属传递免疫功能等特点，已被作为一种免疫调节剂而广泛使用。文献报道，从ＨＢｓＡｇ免疫动物的脾及淋巴结提取的ｉＲＮＡ，可将其免疫活性转移给乙肝患者，临床应用已取得了疗效 Immunological ribonucleic acid (iRNA) specific immune activity, domestic and foreign scholars have conducted a lot of research. Given the characteristics of iRNAs such as the ability to transmit immune functions beyond genus, iRNA has been widely used as an immunomodulator. It has been reported in the literature that the iRNA extracted from the spleen and lymph nodes of animals immunized with HBsAg can transfer its immunocompetence to patients with hepatitis B, and the clinical application has achieved curative effect