Johne’s disease (JD) is an incurable infection of the gut by Mycobacterium avium subspecies paratuberculosis (MAP). It affects cattle, sheep, goats, deer, alpacas and a range of other herbivores. Infection with MAP results in wasting and in some species chronic terminal diarrhoea. Many animals that are infected show no clinical signs but are still potentially … Continue reading Johne’s Disease (Paratuberculosis)