Before treatment and subsequent infection, several genera and species were associated with B4galnt2 expression (B6+/-) in the gut, including members of the Bacteroidales (Bacteroides, Prevotella, Prevotellaceae) and Parasutterella (Proteobacteria), while Turicibacter (Firmicutes) and other members of the Bacteroidales (Barnesiella, Porphyromonas, Porphyromonadaceae) were indicative of mice lacking B4galnt2 expression in the gut (B6-/-; Fig 7C and 7D and S4 and S5 Tables). Here, B4GALNT2 is linked to infection.