Fig. 2

Core microbiomes of analyzed samples. a Main taxa of the core microbiome of all fecal samples and their relative distribution in healthy controls (blue) compared to patients with HCV (orange). Left panel average relative abundance of 16S sequence reads representing core taxa (in percent). Right panel actual values of the average proportions of 16S sequence reads representing core taxa per group. b Venn diagram representing the core OTUs (genus level) in each analyzed group and their intersection