Porcine reproductive and respiratory syndrome virus, inactivated vaccine and application thereof

The invention discloses a porcine reproductive and respiratory syndrome virus, an inactivated vaccine and application of the porcine reproductive and respiratory syndrome virus and relates to the technical field of biology, and a porcine reproductive and respiratory syndrome virus strain is named as porcine reproductive and respiratory syndrome virus 17-0078 strain and preserved in China Center for Type Culture Collection (CCTCC). The preservation address is Wuhan University, Wuhan University, No. 299, eight road, Wuchang District, Wuhan, China, the preservation number is CCTCC NO: V202452, and the preservation time is May 14, 2024. According to the technical scheme, the porcine reproductive and respiratory syndrome virus strain 17-0078 is provided, and the strain is a virulent strain and can be used as a strain for vaccine inspection; the strain has good immunogenicity, and can be made into an inactivated vaccine for preventing and controlling the current epidemic PRRSV strain. 本发明公开了一种猪繁殖与呼吸综合征病毒、灭活疫苗及其应用，涉