In the RSV Bronchiolitis in Early Life (RBEL) study, children were followed after severe RSV bronchiolitis until the age of six, and it was found that the development of asthma and atopic dermatitis was not associated with Th2 phenotype indicators in peripheral blood (IgE and eosinophils) or with allergic sensitization [44]. This evidence concerns the gene IGHE and bronchiolitis.