You’re positing an unobserved and unproven vector of transmission. Is it possible? Don’t know. Every documented instance of transmission to humans from another species has been due to eating an infected animal or being bitten by one, not via contagion. The burden of proof is on you. I have no burden to disprove your novel assertions. That’s the way it works, pityar.
So I'll make a deal with you. Go to someone's house who gets Ebola and has a dog. Get there within 3 days of diagnosis. Let the dog lick your face several times. Get three "doggie kisses." Record it.
I'll give you $1,000 if you don't die from Ebola within 3 months. Heck, even if you get Ebola and survive, I'll pay up as a bonus for being that tough.
If my positing this as a possible vector is so ridiculous, your only problem for cashing in a quick grand is finding someone who has Ebola and a dog. Bet that won't be too hard in about 6 months. Free money!
I am half tempted to make this a real binding offer, but since you taking this bet and dying would weigh on my soul, I just can't. So yup, you're right, dogs as a vector is a stupid idea and I'm an idiot. OK?