摘要
@#Porcine reproductive and respiratory syndrome(PRRS),also known as blue ear disease,is an immunosuppressive disease caused by porcine reproductive and respiratory syndrome virus(PRRSV). PRRSV is an important infectious pathogen of porcine,which has the characteristics of easy recombination and mutation,high transmission ability,and has been widely spread in the world. At the same time,because of the characteristics of immunosuppression,immune evasion,and easy-to-cause antibody-dependent enhancement(ADE),the pathogen has brought serious challenges to the disease prevention and control of PRRS and the development of related vaccines. In this paper,the pathogenic process of PRRSV,immune evasion mechanism,and research progress in different types of PRRSV vaccines were reviewed,in order to provide ideas for the development of related vaccines in the future