Caseous Lymphadenitis in Sheep
Posted by Michael D. Piontkowski, DVM on 6/1/2001 to
CASE-BAC
Caseous Lymphadenitis (CLA), a disease caused by the bacterium Corynebacterium pseudotuberculosis, is a widespread chronic infection causing significant financial losses for the sheep industry. The bacteria can enter a flock either from the environment or more frequently from the introduction of infected sheep. Once present in a herd, this infection can be presented in an external form involving superficial lymph nodes, an internal form involving internal lymph nodes or organs (especially the lungs), or a combination of both.