As IL-17A signaling, but not the cytokine itself, and subsequent neutrophil recruitment were predicted to be activated more in RV- than RSV-cases, our data corroborate this and indicate a potential role of RV-bronchiolitis-associated bacterial sRNAs to induce comparatively higher neutrophil activation and recruitment than in RSV-bronchiolitis. This evidence concerns the gene IL17A and bronchiolitis.