in 116 cases ( 31 % ) viruses were isolated or detected , consisting of 25 reo-viruses , 17 rotaviruses , 14 adenoviruses plus demonstration of haemorrhagic enteritis virus antigen in the spleens of 15 birds , eight pox-viruses , 19 duck enteritis herpesviruses and six other avian herpes-viruses , four duck hepatitis viruses , six other enterovirus-like isolates , two duck astroviruses and two avian infectious bronchitis viruses .
C0042776
viruses
C0035870
rotaviruses