The presence of Clostridioides difficile in faeces before and after faecal microbiota transplantation and its relation with recurrent C. difficile infection and the gut microbiota in a Dutch cohort - PubMed
While eradication of C. difficile is not required for clinical cure of rCDI by FMT, it is associated with reduced prevalence of early CDI recurrence, as are the full completion of pre-FMT vancomycin (at least 10 days) and avoiding post-FMT antibiotics.