Probably because it is currently not airborne and requires a host to provide aerosolized particles for it to travel on. Where as dealing with a patient means a higher potential for particulates that could be forcibly expelled from the patient (i.e. blood, sneezing, vomiting, ect.)
I mean, I personally would want a hazmat suit, but as far as the science checks out (based on some mild searching of science papers on the Google) the disease is mostly communicable via direct contact with fluids/matter that is infected/contains viral particulates. So as long as you're wearing protective materials that prevent direct skin contact and avoid getting any on your clothing, it should be fine.