Our veterinary health examinations routinely include a check of the patients weight, temperature, ears for ear mites and fur for ring worm. (britvet.com)
With this type of allergy the dog develops areas of hair loss that look much like ring worm. (all-about-puppies.com)
I know that humans can get ring worm, but I think that is actually a fungal infection and not actually a worm. (caninejournal.com)