Newcastle disease, typical signs, chickens
Typical signs of Newcastle disease in chickens. A. Lethargy in a young chicken. B. Necrotic/hemorrhagic areas of comb in a young chicken. C. Lethargy with periorbital edema in an adult hen. D. Head swelling in an adult hen.
Courtesy of Southeast Poultry Research Laboratory of the USDA Agricultural Research Service. Images by Dr. Kiril M. Dimitrov.
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