Fig. 2: Alterations in gut fungal diversity in patients with COVID-19 or H1N1 infections compared with HCs.

A Venn diagram, B Chao 1 index plot, C Shannon index plot, D PCoA plot, and (E) NMDS plot based on the gut fungal operational taxonomic units (OTUs) of COVID-19 patients (n = 67), H1N1-infected patients (n = 35) and HCs (n = 48). *P < 0.05; **P < 0.01; and ***P < 0.001.