title: Properties of hog cholera viruses recently isolated in Japan.
abstract: Hog cholera (HC) viruses newly isolated in Japan in 1980 and 1981 were examined for pathogenicity and serological properties by the neutralization test with antisera against bovine viral diarrhea-mucosal disease (BVD . MD) and HC viruses. Five of 23 isolates examined were neutralized poorly by BVD . MD antibody, but well by HC antibody. On the contrary, 15 isolates were neutralized readily and two isolates moderately by BVD . MD antibody. The other one reacted poorly with either HC or BVD . MD antibodies. The isolate neutralized poorly by BVD . MD antibody was more highly pathogenic than those neutralized readily. It was concluded that the antigenic properties and pathogenicity of the HC viruses were not monotype , and that HC viruses varying in antigenicity and pathogenicity were present in the field.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000276:immunology; D000956:Antigens, Viral / Q000276:immunology; D006691:Classical Swine Fever / Q000453:epidemiology / Q000382:microbiology*; D006692:Classical Swine Fever Virus / Q000145:classification* / Q000276:immunology / Q000472:pathogenicity; D001908:Diarrhea Viruses, Bovine Viral / Q000276:immunology; D004196:Disease Outbreaks / Q000662:veterinary; D007564:Japan; D009500:Neutralization Tests / Q000662:veterinary; D012703:Serotyping / Q000662:veterinary; D013552:Swine
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral