Aujeszky's Disease

Aujeszky''s disease (AD) is increasing in Europe and it has become a serious problem in some of the countries of the European Communities (EC). The control and eradication of the disease is very difficult since AD virus (ADV) evokes a persistant latent infection in its main host, the pig. Such latent infection can also occur when vaccinated pigs are exposed to the virus. In view of this, the Commi...