The problem is that early symptoms are similar to many other flu-like symptoms and might therefore not be immediately recognized. That’s one issue. Another is that, while not airborne, there is the issue of fomites, which are viral particles left on surfaces through human contact. A contagious person uses a door handle. Others that follow and touch that handle are at risk. I also hear that WHO was considering revising the period of contagiousness, to include some pre-symptomatic period... but I can’t find that link at the moment.
The reason it took several months for the Ebola outbreak to even be recognized was the non-specific nature of the early symptoms. That, and Ebola had never been seen in Guinea before. Malaria and Lassa are both common there, and have similar symptoms--IIRC, health officials thought they were dealing with Lassa, which can also have a hemorrhagic presentation.
The transmissibility of Ebola through fomites is an open question. The studies that would determine how long the virus remains infectious on various surfaces under various conditions have not been done. I have not heard anything about a revision of thought about the contagious period.
Our hospitals may have good written procedures to stop contagious and infectious diseases, but the staff routinely breaks protocol. Not just during flu outbreaks, but also dealing with things like VRE where strict isolation protocol is supposed to be followed.
A recent article here quoted the CDC as saying that any hospital could isolate an Ebola patient in a regular private hospital room. However, if you saw the area where Dr. Brantly was treated, that's not what they had.
First off the regular private rooms do not have negative air pressure, but Brantly’s room did. Also, Brantly’s room had an entry way room/area and his doorway had red tape outlining a rectangle in front of it.
The area outside the doorway and inside the tape was also considered part of the hot zone. Most of the private rooms as well as ICU rooms did not have that double entry. The team caring for him had the full PPE which is more than the usual isolation garb.
Even in the ICU which had negative air pressure, there was much less than what they used with Brantly. If all we have is a few cases that can be contained at places such as where he was, then the USA is likely able to handle it.
Let it get out of hand where regular hospitals are also needed to treat cases, I am sorry to say, that I am a skeptic.