All Cooped Up: Marek’s Disease

All Cooped Up: Marek’s Disease
Add to Favorites Reading Time: 5 minutes All Cooped Up is a new feature, profiling poultry diseases and how to prevent/treat them, written as a collaboration between medical professional Lacey Hughett and University of Pennsylvania poultry specialist Dr. Sherrill Davison. The facts: What it is: One of the most common viral neoplastic diseases seen in poultry.   Causative Agent: Three species within the genus Mardivirus, although only one, Gallid alphaherpesvirus, is virulent.  Incubation period: About two weeks, but it can be three to six weeks before clinical signs are evident. The incubation period for this disease is highly variable. Disease duration: Chronic.   Morbidity: Incredibly high.  Mortality: Once a bird begins showing symptoms, 100%. Signs: Paralysis, neurological disease, and severe weight loss. Postmortem examination will show tumors and enlarged nerves. Diagnosis: Diagnosis can be done with flock history, clinical signs, postmortem lesions of tumors and enlarged nerves, and cell histopathology. Treatment: No treatment exists, but

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