Shivaprasad H L, Hill Daphne, Todd Daniel, Smyth Joan A
California Animal Health and Food Safety Laboratory System, Fresno Branch, University of California, Davis, 2789 South Orange Avenue, Fresno, CA 93725, USA.
Avian Pathol. 2004 Oct;33(5):525-9. doi: 10.1080/03079450400003585.
The bird examined was a 10-week-old female Gouldian finch (Chloebia gouldiae) from an aviary that had housed about 100 Gouldian finches, which had nasal discharge, dyspnoea, anorexia, depression and a very high mortality (50%) in both adult and young birds. Gross and histopathology revealed moderate to severe lymphoid depletion in the bursa of Fabricius and thymus, and sinusitis/rhinitis, tracheitis, bronchopneumonia, myocarditis, nephritis and splenitis. Circovirus infection was diagnosed in the Gouldian finch based on finding characteristic globular intracytoplasmic inclusion bodies containing 15 to 18 nm virus particles in the mononuclear cells of the bursa of Fabricius by transmission electron microscopy and by demonstrating circovirus DNA in the cytoplasm of mononuclear cells of the bursa of Fabricius by in situ hybridization using a circovirus-specific DNA probe. The Gouldian finch was also affected by concurrent bacterial and adenovirus infections. This is the first report of circovirus infection in a Gouldian finch.
所检查的鸟是一只10周龄的雌性胡锦鸟（Chloebia gouldiae），来自一个饲养了约100只胡锦鸟的鸟舍。该鸟舍中的鸟出现了鼻腔分泌物、呼吸困难、厌食、抑郁等症状，成年鸟和幼鸟的死亡率都非常高（50%）。大体病理和组织病理学检查显示，法氏囊和胸腺有中度至重度淋巴细胞耗竭，以及鼻窦炎/鼻炎、气管炎、支气管肺炎、心肌炎、肾炎和脾炎。通过透射电子显微镜在法氏囊单核细胞中发现含有15至18纳米病毒颗粒的特征性球状胞质内包涵体，并使用圆环病毒特异性DNA探针通过原位杂交在法氏囊单核细胞的细胞质中检测到圆环病毒DNA，据此诊断该胡锦鸟感染了圆环病毒。该胡锦鸟还同时受到细菌和腺病毒感染。这是关于胡锦鸟感染圆环病毒的首次报道。
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