

Learn more with our guide to roundworm infection in dogs. It can also occur through vomiting, although this is not as common. In addition, it is common for the adult parasites themselves to be expelled periodically through the feces. They usually measure between 1.1-6" (3-15 cm) and they release eggs that are eliminated via the feces. Regardless of the route of transmission, the adults of these parasites settle in the small intestine of the dog. Toxascaris leonina can only be transmitted in two ways:


