Fig. 5

Alpha and beta diversity comparison of airway and bed dust samples. a Box plot showing the Shannon diversity. Highly significant differences were observed in the diversity (Wilcoxon test, p < 2.2e−16) between airway and bed dust samples. b Distances shown in the PCoA plot are based on Bray-Curtis diversity metrics. The bacterial microbiome of each sample is indicated with one dot. c Bray-Curtis distance between the dust-airway sample pairs for a specific child compared to the other random sample pair. “Own” represents the distance between specific children bed dust with their own airway samples. “Others” represents the distance between random pairs of children bed dust with random airway samples. d Associations between fungal and bacterial alpha diversity (observed richness) for a given sample. The shaded gray region represents 95% confidence intervals. Linear regression analysis: p = 0.99, R = − 0.00057 for observed richness