Central America.
The world is, largely, in denial. Read these 2 articles to understand why:
http://www.weeklystandard.com/articles/six-reasons-panic_816387.html#!
http://raconteurreport.blogspot.com/2014/10/another-nail-in-coffin-expecting.html
Both explain the mathematics of the thing. Put simply, Ebola is expanding at a geometric rate (doubling roughly every 3 weeks), while we are incrementally merely adding resources to this thing. Even WHO has said that we need to get it under control within 60 days, or we are in uncharted waters. No one EVEN HAS A PLAN what to do (let alone the resources or the will to implement such a plan) if we don’t.
The best plan: AVOID EBOLA. Period. End. Of. Report. We can’t cure it - yes, for individuals that are lucky enough to be caught early enough, modern medicine in a 1st world setting can give them a good chance to recover, but the number of people that this has happened to can be counted on both hands. Also, we can’t innoculate enough people to stop it in its tracks (see the 2nd article, above). Thus, it has to burn itself out (i.e. simply be isolated from the non-infected and kill enough of those in the infected zone that the disease simply runs out of new hosts. YES, that is harsh, but it saves those who are not infected - and that says nothing about doing whatever is humanly possible to help those who are infected. But make no mistake, if this thing grows as it has for another few months, we are sunk - we are talking Black Death kind of percentages OR WORSE.
Oh, and what happens when 30% or more of your nation is sick or dead, and the rest are petrified of getting infected or busy taking care of those who are? Simple: normal functions, like food, fuel and medical production and transport basically cease. Electricity goes out, water stops coming out of the faucet. THAT, by itself, is a recipe for 90% or more of the people to be dead in a few months, without even considering a massive pandemic.
Quarantine - STRICT quarantine - is the only thing that will buy us enough time to work on vaccines and cures. If that means World War Z-like measures, then so be it. We literally face an extinction event if this isn’t controlled SOON.