Dog has mange: How to prevent others from getting it?

READ THE QUESTION BEFORE ANSWERING. ITS A UNIQUE SITUATION.

We have been adopted by a stray who is residing in our front yard and on our front porch. We feed him & give him water and have been attempting for seven days to get him into our car to get him to the vet. He appears to have mange (sarcoptic) on his ears.

Because of this, we do not want him to interact with our dogs in any way. Our dogs do not go in our front yard or go through our front door. When they leave the house, they are always loaded into our van in the garage and then we leave.

Are our dogs are risk for getting mange from this dog simply hanging around our front yard and front door? Can the mange mites come through our front door when we open the door or am I being overly paranoid?

We’re doing our best to get him calm enough to get him to the vet for treatment. However, until that occurs, he’s basically decided he’s camping out in our yard.
Call my vet for….??

I’ve had five appointments I’ve had to cancel because I can’t get him in the car to get him to the vet. They won’t diagnose over the phone and will not give medication over the phone, so the vet isn’t a help to me for this.
Without being a vet myself and actually doing a skin scraping, I’ve had a lot of experience with mange. I had two chows who had dermadectic mange all of their lives because of their wrinkly skin and moistness around their mouths. They always had cream put on them but it wasn’t totally contagious.

I’ve had 1 dog with sarcoptic mange, and it started on her ears and looks exactly like this: No hair AT ALL on his ears. The skin is thickened, leathery looking, and bumpy. It looks worse at the tip and gets better as it goes up. It usually starts at the tip and spreads upward on the ear and then to the rest of the body.

I’m just guess-timating, but I will not take a chance giving my dogs either mange, so I feel it necessary to keep them separated.

If he is a stray, seven days is not quite enough for him to trust you yet. Keep trying to get him to feel comfortable around you. This won’t work if you keep trying to shove him in a car (especially if he was once traumatized by one). Just be patient.
Or try calling your vet and explain the situation. Maybe they have some ideas; or maybe they might even be able to do a house call.
If it is demodontic or “red” mange, then you don’t need to be worried about it passing to your dogs. This type of mange is only transfered from mother to puppies. Actually all dogs have these mites- even healthy ones. The ones that lose fur have a concentrated amount in that particular area; or a weakened immune system allowing the mites to take over.
You should be more worried if it is sarcoptic mange. This type can be transfered- not only to your dogs- but to you yourself. This is another reason that I would definately try calling the vet again.