EUROPEAN VACCINE VIRUSES OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS (PRRSV)

摘要

The present invention is concerned with European strains of the Porcine Reproductive Respiratory Syndrome (PRRS) virus, which are attenuated, and show a characteristic reaction pattern with two monoclonal antibodies against wild-type PRRSV. The invention also relates to vaccines for the protection of pigs against PRRS, to monoclonal antibodies reactive with PRRS virus and monoclonal antibodies specifically non-reactive with the attenuated strains.