And the lepers were confined on islands, right? Get real. It has always been dangerous dealing with infectious disease.
Danger is one thing. There is no treatment for the disease and it is 50% fatal. Is it worth infecting others to changing the victim's bed pan for the final few days?
No one can be expected to do that, although some may, exhibiting heroic virtue, like Fr. Damian.
If I get ebola, I'm at home, and there's no cure, I'd just tell my family, get the hell out, and burn the house down in a couple of weeks.