Caseous lymphadenitis
Zoonotic
Caseous lymphadenitis is a chronic, contagious bacterial disease of sheep and goats caused by Corynebacterium pseudotuberculosis. It produces abscesses with thick, layered, cheese-like pus in superficial lymph nodes (external form) or in internal organs and lymph nodes (visceral form). The disease spreads through pus contaminating the environment, shearing equipment, and wounds, and causes condemnation of carcasses and chronic ill-thrift. It is difficult to eradicate once established in a flock or herd.
Quick facts
- Type:
- Infectious
- Typical onset:
- Chronic
- Body systems:
- Hemolymphatic, Integumentary, Multisystemic
- Affected species:
- ALPACA, GOAT, LLAMA, SHEEP
Sources & references
- Merck Veterinary Manual — Describes the bacterial cause, external and visceral forms, diagnosis, and control of CLA in small ruminants.
- Wikipedia — General overview of Corynebacterium pseudotuberculosis infection and its abscess-forming disease in sheep and goats.
This content is for educational purposes and is not a substitute for professional veterinary advice. If you are worried about your pet, contact your veterinarian.