Expression of Nucleocapsid Protein Gene of Porcine Reproductive and Respiratory Syndrome Virus in Soluble Form and Development of an Indirect ELISA for the Detection of Viral Antibodies with the Expression Product

• 猪繁殖与呼吸综合征病毒核衣壳蛋白基因的高效可溶性表达和检测血清抗体的间接ELISA方法的建立