title: 6 weeks after Cefoperazone treatment mouse-7 (R3-7)
design: Mice were treated with and without cefoperazone. The cecal content of mice was harvested at different time points and DNA extraction and 454 pyrosequencing was done to amplify the 16S rRNA DNA from the V3-V5 region. Treatment groups included non-antibiotic treated, 2 days after cefoperazone treated and 6 weeks after cefoperazone treated mice. Mice from the same treatment groups were assessed for susceptibility or resistance to C. difficile infection.