Ebola in Dallas, Texas

There are people that knowingly spread other terrible diseases to people, like AIDS, I don't see why this would be any different. Paranoia is a good thing, panic is not.

I think part of it is because of the sheer number of people with HIV/AIDS which makes it far more of a problem : a handful of people are easy to convince to act rationally and possibly get better (As is the case with ebola).

In a horrific truth, the relatively fast death from ebola also likely helps to prevent it spreading. People will want to be quarantined because most won't want to risk killing friends and family, the effects will be hard to hide, and if they want any chance at all of surviving, it's probably best to speak up right away.