Concurrent infection of Avibacterium paragallinarum and fowl adenovirus in layer chickens.

ABSTRACT: The diagnosis of a concurrent infection of Avibacterium paragallinarum and fowl adenovirus (FAdV) in an infectious coryza-like outbreak in the outskirt of Beijing is reported. The primary signs of the infection were acute respiratory signs, a drop in egg production, and the presence of hydropericardium-hepatitis syndrome-like gross lesions. Laboratory examination confirmed the presence of A. paragallinarum by bacterial isolation and a species-specific PCR test. In addition, conventional serotyping identified the isolates as Page serovar A. Fowl adenovirus was isolated from chicken liver specimen and identified by hexon gene amplification. In addition, histopathologic analysis and transmission electron microscopy examination further confirmed the presence of the virus. Both hexon gene seque

SUBMITTER: Mei C 

PROVIDER: S-EPMC7704954 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature