title: Mechanisms of asthma exacerbation.
authors.affiliation: University Medicine, Southampton General Hospital, UK.
authors.forename: S L
authors.initials: SL
authors.lastname: Johnston
mesh_terms: D000328:Adult; D001249:Asthma / Q000150:complications / Q000503:physiopathology* / Q000821:virology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012141:Respiratory Tract Infections / Q000150:complications / Q000503:physiopathology* / Q000821:virology; D014777:Virus Diseases / Q000150:complications / Q000503:physiopathology*