Fig. 3: Association between the severity of the disease and microbiota composition of Moroccan patients.
From: Gut microbiota alterations are linked to COVID-19 severity in North African and European populations
a Relative abundance of prokaryotic taxa in Moroccan microbiota of severe, non-severe patients and healthy subjects at phylum, family, and genus levels. b Alpha diversity indices (Shannon’s H and Chao1) calculated from the raw taxonomic tables of severe, non-severe patients and healthy subjects from Morocco. Kruskal-Wallis tests with Dunn’s test post-hoc (Benjamini-Hochberg p-value correction method) were used to compare the three groups. *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001. c Explained variance in Bray-Curtis distance (R²) calculated from PERMANOVA tests in Moroccan patients. No significant associations were observed (FDR p-value > 0.05) for other demographic details, covariates, or hospital course information. d PCoA build from the Bray-Curtis dissimilarity matrices constructed from the normalized abundance of species of each microbiota. Ellipses were drawn around the centroids of each emerging community at 95% (inner) and 97% (outer) confidence intervals.
