Fig. 3From: Indoor bacterial, fungal and viral species and functional genes in urban and rural schools in Shanxi Province, China–association with asthma, rhinitis and rhinoconjunctivitis in high school studentsMicrobial functional gene composition and NMDS analysis of functional pathways in high schools in Shanxi, China. A The relative abundance of first-level KEGG functional pathways. Schools 1–5 are from rural areas, and schools 6–10 are from urban areas. B NMDS ordination of classroom functional genes was calculated based on the Bray-Curtis distance matrix. Ordination plot between NMDS1 and NMDS2 is shownBack to article page