Additional file 2 of A recombinant adenoviral vector vaccine expressing the ORF2 capsid protein confers robust protection against chicken astrovirus infection

Additional file 2: Necropsy features in the tissues and organs of SPF chickens after 14 days of infection. Macroscopic necropsy images of the kidney, liver, and duodenum show that chickens in the CAstV challenge control and rAd5 empty vector groups exhibited surface hemorrhage in the kidney and liver, while no obvious lesions were observed in the vaccine group. The horizontal line in the bottom-right corner serves as a 1 cm scale.