Preparation of antigens and vaccines of the mystery disease virus, obtained antigens and vaccines for the prevention of this disease.

摘要

The method for isolation of the mystery disease virus entails removal of organs of sick or infected pigs, grinding of the removed material and passaging of the supernatant from grinding through sensitive heterologous or homologous cells, followed by harvesting of the supernatant. For the industrial production of mystery disease virus, the virus is cultured on sensitive heterologous or homologous cells. The preparations of purified mystery disease viral antigen comprise attenuated or unattenuated live viral particles or inactivated particles or antigens of subunits or antigens expressed by genetic recombination from genes of the isolated virus. Vaccines containing a vaccinating amount of such an antigen.