Isolation of an Hswl Nav4 influenza virus from a tufted duck (Aythya fuligula) in Japan.
A hemagglutinating agent was isolated from a tufted duck captured in Lake Shinji, Shimane Prefecture, Japan, and identified as influenza A by double immunodiffusion tests with the antiserum to influenza A virus ribonucleoprotein. The hemagglutinin in the isolate was antigenically related to that of A/New Jersey/8/76 but was not identical with it. The neuraminidase antigen of this Hswl subtype was closely related to that of A/turkey/Ontario/6118/68 and was shown to be Nav4 subtype. After experimental infection of 5-week-old SPF-chickens with the isolate, virus was recovered from various organs including the brain, despite the absence of signs of disease.
D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis; D002645:Chickens; D004372:Ducks / Q000382:microbiology*; D009980:Influenza A virus / Q000276:immunology / Q000302:isolation & purification*; D007564:Japan; D009976:Orthomyxoviridae Infections / Q000382:microbiology / Q000662:veterinary; D011201:Poultry Diseases / Q000382:microbiology
D000914:Antibodies, Viral; D000956:Antigens, Viral