Intestinal parasites including hookworms and roundworms affect dogs and pose zoonotic risks, requiring regular preventive treatment and hygiene.
Heavy parasite burdens cause significant suffering - protein loss, anemia, intestinal pain, and impaired development in young dogs. Puppies with untreated heavy worm burdens fail to thrive and may die. Regular preventive treatment eliminates this preventable suffering entirely. The zoonotic risk of Toxocara to humans, particularly children, makes parasite control a public health obligation alongside individual dog welfare.