Caseous Lymphadenitis

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Caseous Lymphadenitis

Pseudotuberulosis, Abscesses


Lymph node, in a goat

Caseous Lymphadenitis

  • Although normally contracted when goats eat contaminated feeds, it might also be contracted via breaks in the skin. There is even some evidence that bacteria can enter unbroken skin.


  • Swollen,
  • Abscessed lymph nodes occur most commonly under the jaw and ear, in front of the shoulder, high in the flank, or above the udder, scrotum, or hock. The nodes may feel warm, and may swell 3 to 5cm (1 ½ to 2 in) or larger.
  • The disease is seldom fatal, unless involving a major artery or nerve around the head, or the lymph nodes inside the body. The abscesses contain a characteristic cheesy, greenish-colored pus.
  • Diagnosis is based on the locations of the abscesses, the character of the pus, and microscopic culture examination, if available. This is a very common disease of agriculturally developed countries.


Caseous lymphadenitis lesions

Caseous Lymphadenitis

  • Abscesses are treated by surgical landing (See Techniques) or total removal by a veterinarian. Additional treatment by administration of antibiotics, usually penicillin or tetracycline, should be continued for 3 to 5 days.
  • Caseous lymphadenitis is different to prevent due to the fact that Corynebacterium pseudotuberculosis (ovis) is a very common soil contaminant. Spread can be slowed by carefully lancing abscesses and washing the wound with 7% iodine. All material from the abscess should be deeply buried or burned. All new additions to your herd, especially those imported from agriculturally developed countries, should be held in isolation, away from local goats, and be held in isolation, away from local goats, for at 30 days. This gives them a chance to develop symptoms of this and other longer incubating diseases before being mixed with local goats. A killed vaccine made from organism of an infected herd has been reported as a successful prevention procedure.


Human Health Concerns:


Caseous Lymphadenitis

Humans should protect their hands from the pus as the organism could cause skin infection. Wash hands well after handling infected animals.


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