Figure 4.
Variation of indoor microbiome before and after hospital opening. (A) Shannon index of alpha diversity decreased after hospital opening. Wilcoxon test p < 0.01 (p < 0.05 denotes significant difference). (B) Overall beta diversity significantly different between preopening and post opening states based on weighted Meta‐Storms distance. PERMANOVA test p < 0.01 (p < 0.05 denotes significant difference). (C) Dynamics of relative abundances on genus level between two time points. (D) Five bacterial genera were selected as biomarkers that can distinguish two time points. The x‐axis is the importance score (mean decrease in accuracy) produced by the Random Forest model that evaluates the importance of each biomarker on distinguishing different hospital status