Fig. 1: Study schematic and clinical outcome.

a GvHD patient received four FMTs. The first three (FMT1, FMT2, FMT3) were performed using stool from a single donor, D8 and the fourth (FMT4) from a different donor D4. a Timeline of HSCT, GvHD onset, FMT treatment, stool collection and sequencing strategy. b Number of bowel openings and stool volume of the patient before and after FMT. Red arrows represent fecal transplant using donor D8, black arrow represents fecal transplant using donor D4. One biological sample was examined over one experiment.