Johne's disease: a successful eradication programme in a dairy goat herd.

This retrospective analysis and report describes the successful eradication and posteradication surveillance programme for Johne's disease ( subspecies (MAP)) in a closed herd of dairy goats. In 1994, MAP's presence in the goat herd was first suspected through individual annual serological screening and then subsequently confirmed through faecal culture and histopathology in 1997 when implementation of a more aggressive programme of testing and eradication of the diseased animals began. This programme included frequent serological screening of all adult goats using ELISA and agar gel immunodiffusion assays.