I don't see why in thhe world they couldn't just test the dog for the ebola virus, and then act accordingly. They test the humans that get sick from ebola to make sure that is what is wrong with them, and apparently, sometimes it doesn't even take much to tell.
The person who got sick on the airplane and then died; they were able to say right away that it was not ebola that he died from.
Why they sometimes need a couple of days and more blood tests to tell, and other times they know right away just doesn't make any sense to me; but then, I am not a doctor.
I agree that the dog should not have to live the rest of his life in quarantine. I thought it would only be a few weeks like they do with people to make sure they are not infected. If the dog would be contagious the rest of his life, then putting him to sleep was probably the only viable option in this case.