I disagree.
Preventing Ebola from getting out of the hospital environment will be no more difficult, in fact easier than preventing hantavirus or similar deadly bugs...
Transmission is not that easy when you are aware of it. Infected NGO aids were likely not aware when they contracted it, at least most of them. The others likely got it from bunking with the infected. (they use dormitory type housing)
The key here is awareness.
After that it is easier to avoid contracting then the common flu virus.
That is the thing about medicine. It is not settled science, but instead based on opinions.
Believe what you want, but the risk of Ebola getting out is Zero if there are no cases in the US. That is no longer the case.