The recombinant plasmids showed an adjuvant effect,and CpG2 was the best adjuvant among the plasmids.

• 发现CpGDNA重组质粒中无论插入CpG基序多或少都能增强小鼠抗囊尾蚴总抗体和IgG2a抗体亚类含量,都具有免疫佐剂效应,但其免疫强度有差别,其中CpG2的佐剂效应最强;