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Exotic Newcastle disease in a game chicken flock.
- Source :
-
Avian diseases [Avian Dis] 1999 Apr-Jun; Vol. 43 (2), pp. 349-55. - Publication Year :
- 1999
-
Abstract
- A sudden increase in mortality, preceded by a short history of respiratory signs and diarrhea, occurred in a backyard flock of 48 game chickens in the Central Valley of California. Necropsy findings included severe generalized linear hemorrhages and/or ulcers in the digestive tract, larynx, and trachea. Histology revealed severe multifocal hemorrhages and necrosis in the mucosa of the respiratory and digestive tracts, vasculitis, and necrosis of lymphoid tissue. The birds were serologically negative to Newcastle disease virus; this was consistent with an acute infection. The avian paramyxovirus type 1 isolated was characterized as velogenic viscerotropic Newcastle disease virus. A thorough epidemiologic investigation was carried out, and no other premises were found to have birds with clinical signs or evidence of exposure. The entire outbreak was limited to the original backyard flock and resolved within 14 days of the onset of clinical signs.
- Subjects :
- Animals
California epidemiology
Chickens
Disease Transmission, Infectious
Newcastle Disease epidemiology
Newcastle Disease pathology
Newcastle disease virus isolation & purification
Poultry Diseases epidemiology
Poultry Diseases pathology
Communicable Disease Control economics
Disease Outbreaks veterinary
Newcastle Disease transmission
Poultry Diseases transmission
Subjects
Details
- Language :
- English
- ISSN :
- 0005-2086
- Volume :
- 43
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Avian diseases
- Publication Type :
- Academic Journal
- Accession number :
- 10396652