Identification of avian polyomavirus and its pathogenicity to SPF chickens
The research aimed to study an Avian polyomavirus strain that was isolated in Shandong, China.To study the pathogenicity of APV in SPF chickens, and provide references for epidemiological research and disease prevention and control of APV.The genetic characterization of APV strain (termed APV-20) was analyzed and the pathogenicity of APV was invest