Additional file 3 of Influenza infection elicits an expansion of gut population of endogenous Bifidobacterium animalis which protects mice against infection

Additional file 3: Fig S3. Principal coordinate analysis (PCoA) of the weighted UniFrac distances among the GX.DG, GX.SG, HB, and NC groups at four infection stages. Experimental description references to Fig. 2. Sample clustering at stage 4 (days 9-15) revealed differences between the GX.DG group and the other three groups.