Yup. Some animals will eat vomit. That includes some dogs. The scary thing is that dogs don’t get sick from Ebola. But they can carry it and be contagious. Dunno what other animals can besides some bats.
Contagious? Is there any evidence of anyone ever having come down with ebola due to exposure from a dog? I don't believe there is. The cases that have been attributed to bats were either due to eating them or being bitten by them. That is not contagion.
Technically, dogs only eat regurgitated food [which is very different from true vomit] whether their own or that of their peers.
I’ve never seen one touch “real” vomit.