@nilshamilton,Hi and Welcome to Connect, I do want to advise we are not Medical Doctors, We are a group of Patients and Caregivers who have had many experiences we share on many subjects. I thing tho we are all just learning about this virus and it seems the information changes on a daily bases. I guess if it was my son and would treat it like he was in my home and the precautions would be the same as they are advising. Here is a link to the CDC recommendation https://www.cdc.gov/coronavirus/2019-ncov/if-you-are-sick/care-for-someone.html#when I hope this answers some of your questions. Last resort ask his primary care doctor.
I hope you Have a Blessed Day