McGillgrad,
I disagree with your statement about the hospital being unsafe for an HIV+ doctor. If the person has HIV, not AIDS, he/she isn't really immunocompromised so being around a germ-filled hospital wouldn't be significantly more dangerous for him/her than other medical students or doctors. How long someone is likely to practice, and risk to patients from having an HIV+ physician, are other separate issues. As far as the "risk to patients" thing, we must not forget that there are noninvasive fields like radiology, pathology, psych, etc. where a doc really wouldn't be suturing or drawing blood from patients, etc. Also, the risk of transmitting HIV to someone via some routine medical procedure, if the doctor is on therapy and has a very low or undetectable viral load, would be exceedingly low. I think if we are going to ban HIV+ folks from medical school, then we need to ban folks with any type of immune compromise, or a risk of not living as long as others (history of a cancer that could come back), or who are older than average (i.e. nobody over 35), or anything infectious (hepatitis C), etc. Not sure where we would stop....it's an interesting question though.