It does not seem to be behaving as it normally does. I say that because many medical professionals and other staff trained to deal with Ebola such as nurses, cleaning people have indeed become sick with Ebola. Several trained people working with full protective gear have become infected so yes I am concerned.
Ebola is not necessarily so easy to deal with when it is not inside a host, since it can live on hard surfaces dry for 20 something days. It would seem that many could be exposed to the many surfaces that a person sick with Ebola could have left Ebola on through their fluid.
I think the reasons for the med pro’s (NGO’s) getting infected is primarily because ebola presents like the flu or a cold, initially.
There is no test for it and it does not present as ebola until it enters the final stage or death in humans. It often does not even present as a runny nose in animals.
So a lot of people can contract it accidentally and unknowingly until a definitive outbreak is warned about.
That’s not the case with the situation in the US.