PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VACCINE

摘要

The invention discloses a vaccine and methods for the treatment of porcine reproductive and respiratory syndrome. The vaccine is derived from the viral agent NEB-1-P94, deposited at the American Type Culture Collection under accession number VR-2525. Further, the invention discloses a vaccine virus with phenotypic characteristics which can be distinguished from wild type PRRS virus.