Affiliation: | aInstitute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China;bResearch Center of Avian Disease, College of Veterinary Medicine of Sichuan Agricultural University, Chengdu, Sichuan, People’s Republic of China;cKey Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, People’s Republic of China |