From what I've read, Ebola is similar to AIDS in that it's transmitted via bodily fluids (and by fruit bats, which are carriers). Since the infected people die quite quickly, they don't have much opportunity to have sex and spread it too much. Medical personal are at risk, even those dealing with the corpse as the virus is still active after death.
Hospitals in this country don't have the capability to deal with even moderate numbers of people infected with that kind of virus.
Let us hope it does not make it out of Africa.