[Viral infection of the respiratory tract].
D006389:Hemagglutinins, Viral / Q000276:immunology; D006801:Humans; D009439:Neuraminidase / Q000276:immunology; D012141:Respiratory Tract Infections / Q000209:etiology* / Q000276:immunology; D014777:Virus Diseases / Q000276:immunology
D006389:Hemagglutinins, Viral; D009439:Neuraminidase
Virusinfektionen des Respirationstraktes.