Occurrence: Formerly present in many countries, it has been eradicated from some and is Notifiable in many.
Age affected: All ages
Causes: Aujeszky’s Disease virus
Effects: Respiratory signs, abortion, stillbirths, mummies, pre-weaning deaths with nervous signs. In pigs younger than 3 weeks, incoordination, loss of appetite, depression, vomiting, diarrhoea and convulsions may occur followed by death of whole litters. Older pigs often have fever, loss of appetite, sneezing, coughing, pneumonia, convulsions and sometimes blindness. Abortion, stillbirths and mummified pigs can also occur.