Figure 5.

Bacteroides thetaiotaomicron influences the outcome of wild type and ΔnagC strains in co-infected mice. Streptomycin-treated BALBc were infected with a 1:1 mixture of wild type and ΔnagC EDL933 strains. Mice were gavaged or not daily with 5 × 10⁹ B. thetaiotaomicron cells starting 1 day before EHEC infection. Competitive indices WT/ΔnagC and concentrations of NAG and NANA obtained at day 8 post-infection in the cecal contents of mice treated or not with B. thetaiotaomicron are shown. ^*p < 0.05 and ^**p < 0.01.