blog about worms and infections in dogs. For example, tapeworms in dogs, ringworms in dogs, hookworms in dogs, roudworms in dogs, whipworms in dogs, worms in dogs etc.The hookworm is a parasitic nematode. It lives in the small intestine of its host. The hosts may be mammals such as cats, dogs or humans. Ancylostoma duodenale and Necator americanus are two types of hookworms that infect can infect humans.