title: Protection of chickens against challenge with virulent influenza A viruses of Hav5 subtype conferred by prior infection with influenza A viruses of Hsw1 subtype.
abstract: Prior infection of six-week-old chickens with influenza A viruses of Hsw1 haemagglutinin subtype and irrelevant neuraminidase subtypes reduced the deaths and sickness in groups of those birds challenged with A/tern/s. Africa/61 (Hav5Nav2/3) and A/chicken/Scotland/59 (Hav5N1).
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D002645:Chickens; D003429:Cross Reactions; D009980:Influenza A virus / Q000145:classification / Q000276:immunology*; D009976:Orthomyxoviridae Infections / Q000276:immunology / Q000662:veterinary*; D011201:Poultry Diseases / Q000276:immunology*
chemical_list: D000956:Antigens, Viral