Dr Steve Goldstone has brought our attention to the recent publication, below.
This paper confirms the presence of SARS-CoV-2 RNA in stool specimens, including patients with "mild" (but nonetheless hospitalized) COVID-19 disease. Unfortunately polymerase chain reaction (PCR) cannot distinguish between viable and non-viable virus, so the implications in terms of HRA practice are not clear.
The current guidance from IANS is to avoid HRA wherever possible & only perform the procedure once COVID-19 has been reasonably excluded. Viral RNA seems to be largely cleared a month after symptoms have resolved. However, we would still recommend full Infection Control measures at this stage, as determined by your local regulations.