The bottom line is, armadillos do not actively look to attack dogs, and would rather avoid them completely. Most of the time, they will turn tail and disappear when confronted by large pets. If your dog does get scratched or bitten by an armadillo you should seek expert veterinarian help.

What can an armadillo do to a dog?

Dogs do contract leprosy, but it is from their own species-specific form of leprosy, Mycobacterium simiae, not the same bacterium that causes leprosy in armadillos and humans.

What happens if my dog touches an armadillo?

Even if your pet does bite an armadillo, the risk of infection is quite low. Your pet is much more likely to be in danger of illness do to encounters with raccoons (prone to rabies), other dogs, cats or children than a (mostly) harmless armadillo.