[TeMPOraL]

But in terms of competing with fecal matter transplants - are there no diseases that could be transmitted between... the backends?

[klyrs]

Crucially, the recipient cannot infect the donor in, let's say, the accepted method of fecal transplantation.

[Fomite]

FMT was the topic of my dissertation. Donor stool is heavily screened, and there's pushes both to use the patient's own stool where possible, or creating synthetic stool that is pathogen free.