title: Aetiology and epidemiology of viral croup in Glasgow, 1966-72.
abstract: A retrospective study of 258 children admitted to Ruchill Hospital, Glasgow, with croup between 1966 and 1972 indicated that the viruses most frequently associated with the syndrome were parainfluenza types 1 and 3 and influenza A. Most cases were admitted in the late autumn and winter months, with a small peak in May and June. This seasonal distribution mirrored the circulation of the main causative agents in the community, parainfluenza 1 being principally associated with the autumn cases, influenza A the winter cases and parainfluenza 3 the summer cases. Two of these ;croup associated' viruses showed regular periodicity, parainfluenza 1 occurring biennially in even years and influenza A in most years. The periodicity of parainfluenza 3 is as yet undetermined.
mesh_terms: D000256:Adenoviridae / Q000302:isolation & purification; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003440:Croup / Q000453:epidemiology / Q000382:microbiology*; D029822:Enterovirus B, Human / Q000302:isolation & purification; D006801:Humans; D007827:Laryngitis / Q000382:microbiology*; D009975:Orthomyxoviridae / Q000302:isolation & purification; D010507:Periodicity; D010614:Pharynx / Q000382:microbiology; D017955:Poliovirus / Q000302:isolation & purification; D012136:Respiratory Syncytial Viruses / Q000302:isolation & purification; D018108:Respirovirus / Q000302:isolation & purification; D012189:Retrospective Studies; D012229:Rhinovirus / Q000302:isolation & purification; D012606:Scotland; D012621:Seasons; D018139:Simplexvirus / Q000302:isolation & purification