Works with dogs same way as bats. They carry the virus and can pass it along.
BTW, it appears most mammals can get the virus
Many ways people are getting infected in these countries is because they eat bats. Not to fear, since Obama said the chance of getting it is very low. So if you had an infected dog, the only way you could catch it is to eat it. So, I guess Obama is safe.... oh, wait a minute.
People get infected from bats and other animals by butchering them, and I have no doubt that they would get infected by dogs in the same manner.
That does not address whether an asymptomatic dog can pass the virus.
I do not know that Ebola can infect most mammals. Only a handful of mammals have been identified as getting Ebola: primates, shrews, something called a duiker, bats, and dogs.