Keywords porcine circovirus type 2;ORF2 gene;expression;ELISA assay;recombinant pseudorabies virus;bivalent genetic engineering vaccine;immunogenicity;

• 猪2型圆环病毒;ORF2基因;表达;ELISA方法;重组伪狂犬病病毒;二价基因工程疫苗:免疫原性;