title: [Varying clinical pictures among young children with influenza virus type A infections].
abstract: The clinical course of Influenza type A virus infections in 47 hospitalized children aged 0-9 years was assessed retrospectively. The infection was diagnosed by demonstration of the virus in the nasopharyngeal secretion during the acute phase of the illness. Out of 21 Influenza A strains in which the subtype was determined, one was found to be H1- and 20 were H3-subtype. Lower respiratory tract disease was the main diagnosis in 21 children, 16 of whom had pneumonia; 14 of these patients were under three years of age. Gastro-intestinal symptoms occurred in 40% of the children over three years of age. Eight patients had febrile convulsions, a girl aged nine years had double vision and vertigo and a female infant aged two months had periodic apnoea and bradycardia. The reasons for hospitalization were febrile convulsions, abdominal pain, lower respiratory tract symptoms and high pyrexia.
authors.affiliation: Hvidovre Hospital, København, børneafdelingen.
authors.forename: P M
authors.initials: PM
authors.lastname: Olsen
authors.forename: A
authors.initials: A
authors.lastname: Hornsleth
authors.forename: P A
authors.initials: PA
authors.lastname: Krasilnikoff
mesh_terms: D002648:Child; D002675:Child, Preschool; D004415:Dyspepsia / Q000382:microbiology; D005260:Female; D005334:Fever / Q000382:microbiology; D006801:Humans; D007223:Infant; D009980:Influenza A virus / Q000302:isolation & purification; D007251:Influenza, Human / Q000175:diagnosis / Q000382:microbiology*; D008297:Male; D009443:Neuritis / Q000382:microbiology; D012141:Respiratory Tract Infections / Q000382:microbiology
vernacular_title: Varierende sygdomsbilleder hos mindre børn med Influenzavirus type A infektioner.