Animal Diagnostic Laboratory, Penn State University, University Park, PA 16802.
Pennsylvania Game Commission, Harrisburg, PA 17110.
Avian Dis. 2021 Sep;65(3):453-455. doi: 10.1637/0005-2086-65.3.453.
A free-ranging, adult male ruffed grouse () was harvested by a hunter during November 2019 in Forest County, PA. The bird was submitted for necropsy due to a skin mass on its left leg. Upon necropsy, two proliferative skin masses were grossly visible, one on the left leg and one on the cere. An additional mass was present on the oropharyngeal mucosa covering the hard palate. These masses were diagnosed as avian pox based on histopathologic and cytologic findings, including marked epithelial hypertrophy, hyperplasia, vacuolar degeneration with eosinophilic stippling, and intracytoplasmic inclusion bodies. An avipoxvirus was detected using PCR and was identified as fowlpox virus through sequencing of the 4b core gene segment. The avipoxvirus from this case showed genetic similarity to isolates from Eastern wild turkeys ().
一只自由放养的成年雄性环颈雉（）于 2019 年 11 月在宾夕法尼亚州福里斯特县被一名猎人捕获。由于左腿上有一个皮肤肿块，这只鸟被提交进行剖检。剖检时，左腿和 Cere 上可见两个增生性皮肤肿块，另外一个肿块位于覆盖硬腭的口咽黏膜上。根据组织病理学和细胞学检查结果，这些肿块被诊断为禽痘，包括明显的上皮细胞肥大、增生、空泡变性伴嗜酸性点彩和胞质内包涵体。通过 PCR 检测到禽痘病毒，并通过测序 4b 核心基因片段鉴定为禽痘病毒。该病例中的禽痘病毒与来自东部野火鸡的分离株具有遗传相似性（）。
