bronchiolitis caused by respiratory syncytial virus in an area of portugal: epidemiology, clinical features, and risk factors.the aim of the present study was to analyse the clinical and epidemiological characteristics of bronchiolitis caused by respiratory syncytial virus (rsv) in 225 children observed in a paediatric hospital in lisbon, portugal, and to determine the clinical, epidemiological, or laboratory parameters that correlate with greater severity of the disease. this prospective study included hospitalised and ambulatory children younger than 36 months of age with a diagnosis of bronchiolitis and was conducte ...200414615937
th1 and th2 cytokine expression in nasopharyngeal secretions during acute bronchiolitis in children younger than two years old.we characterised the t helper cytokine profiles on the surface of nasal mucosa of children with acute bronchiolitis caused by respiratory syncytial virus, parainfluenza virus, influenza virus, adenovirus, or without any viral identification, in order to examine whether these viral types modified cytokine responses. as an additional objective we sought to determine if t helper polarisation was associated with other demographic and environmental factors.201120685025
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