title: Survey on antibody against hemorrhagic enteritis virus among chicken flocks in Japan.
abstract: A survey on antibody against hemorrhagic enteritis virus was conducted by the agar-gel precipitation test among chicken flocks in Japan. The positive rate of individual serum samples increased with the advance in age of chickens. Ninety-one of 181 sera (50%) and 23 of 33 flocks (79%) were positive among chickens more than 181 days old.
mesh_terms: D000256:Adenoviridae / Q000276:immunology*; D000257:Adenoviridae Infections / Q000453:epidemiology / Q000662:veterinary*; D000367:Age Factors; D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis*; D000259:Aviadenovirus / Q000276:immunology*; D002645:Chickens / Q000276:immunology*; D004751:Enteritis / Q000453:epidemiology / Q000662:veterinary*; D006470:Hemorrhage / Q000453:epidemiology / Q000662:veterinary; D005779:Immunodiffusion / Q000662:veterinary; D007564:Japan; D011201:Poultry Diseases / Q000453:epidemiology*
chemical_list: D000914:Antibodies, Viral