Number of donors determined to have specifically contributed to the engraftment of MaaT033 species in patients’ gut (n = 17). For cohorts 1 and 2, MaaT033 batch comprised fecal material from 6 individual donors. For cohort 3, MaaT033 batch comprised fecal material from 5 individual donors. For cohort 4, MaaT033 batch comprised fecal material from 8 individual donors. The definition of specific engraftment (in green) is linked with the detection of donor-specific bacterial species and does not include the bacteria, which may be shared by at least 2 donors (ie, not specifically engrafted, in yellow).