Are wolf worms contagious to human?

There is no such worm called a "Wolf Worm". Take your pet into see your Veterinarian to see what is the problem with your dog. Is this an internal worm you saw passed in the feces of your dog or perhaps a maggot infection on the skin? If an internal worm, then bring in a small sample of the dog's feces with you when you see your Vet. It could be a maggot infection under the skin, caused by flies laying eggs or even mosquitoes who have the eggs attached to their legs by flies brushing against them, or perhaps it is a fungal infection of the skin. But you need to take your pet in to see a VETERINARIAN.

Edit 7/21/11 - Of course there is such thing as a wolf worm; they are also called screw worms. The worm larvae can enter your pet's body through the nose/mouth or directly through the skin via a wound. It is possible to remove them yourself but not recommended because if the worm's body bursts it could lead to an infection.