There's a chance that I haven't contacted the disease yet. I'll wait for the symptoms, if any, then go to hospital..
I will report him or her to the authorities immediately without wasting any second because it's for the good of all including himself too in order to get proper treatment.
Of course, this is the right thing to do no matter what relationship you have with the infected individual. If you all fall sick with the virus, that doesn't sound like a nice plan by keeping quiet.Calling the hospital to come and pick him up as soon as possible. I wouldn't risk getting infected as well for any reason whatsoever.