Caseous lymphadenitis

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four different aspects of subcutaneous abcesses (neck of sheep)

Caseous lymphadenitis (CLA) is an infectious disease caused by the bacterium Corynebacterium pseudotuberculosis found mostly in goats and sheep that at present has no cure. It manifests itself predominantly in the form of large, pus-filled cysts on the neck, sides and udders of goats and sheep. The disease is spread mostly from an animal coming in contact with pus from a burst cyst on an infected animal, but the disease is highly contagious and is thought to also be spread by coughing [1] or even by flies [2]. Studies have found CL incidence in commercial goat herds as high as 30% [3].

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Description of the disease