Mortality of 20% of a flock of 1000 chukar partridge chicks occurred over a 6-week period in Northern California from August to September 2012. Affected birds were 2 to 42 days old and died without premonitory clinical signs or after showing ruffled feathers and anorexia for 24 to 72 hours. Three carcasses were submitted for necropsy, 2 birds had hemorrhagic tracheitis grossly, and all 3 had lymphoplasmacytic and histiocytic myocarditis with myocardial necrosis microscopically. The differential diagnoses and the diagnostic workup to achieve a final diagnosis are discussed. The detection of 2 zoonotic agents in these birds makes this an interesting case from a public health perspective.
All Keywords
【저자키워드】 zoonoses, Infectious diseases, West Nile Virus, Salmonella Typhimurium, Galliformes, Alectoris chukar, avian pathology,
【저자키워드】 zoonoses, Infectious diseases, West Nile Virus, Salmonella Typhimurium, Galliformes, Alectoris chukar, avian pathology,