Avibacterium paragallinarum: an emerging birds pathogen in Qinling wildlife conservation center, China

Springer Science and Business Media LLC
Honglin Xie1, Hui Li1, Chunyan Yu1, Yongqiang Miao1, Yaping Wu2, Ruo Jia2, Qiang Zhang2, Genxing Pan2, Qiang Ma2, Kang-Sheng Jia2, Xinglong Wang1
1College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
2Qinling Giant Panda Research Center, Shaanxi Rare Wildlife Rescue Base, Shaanxi Province, Zhouzhi, Xi'an, China

Tóm tắt

AbstractThe bacterium Avibacterium paragallinarum, previously known as Haemophilus paragallinarum, is responsible for causing infectious coryza (IC) in chickens and other avian species. In this case report, an outbreak of Avibacterium paragallinarum occurred in the Qinling area of China, resulting in clinical symptoms of facial swelling in several bird species, including Golden pheasant, Temminck's tragopan, and Peafowls, and three Golden pheasants died due to prolonged infection. Specific PCR results confirmed the presence of the pathogen in the infected birds. The report describes the clinical symptoms and pathological changes observed in the affected birds, as well as the isolation and identification of Avibacterium paragallinarum. Whole-genome sequencing and phylogenetic analysis were performed, and this is the first report of inter- and intra-species transmission of infectious coryza among wild birds in China.

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