''T. vulpis'' can be found in many places throughout the world. The longevity of the eggs is the major feature of the spread of these worms as they can survive in the environment for a number of years under suitable conditions. As light infections can be carried asymptomatically, host animals can spread the disease readily. Older dogs tend to have a higher burden than younger dogs due to accumulation over the life of the animal. | ''T. vulpis'' can be found in many places throughout the world. The longevity of the eggs is the major feature of the spread of these worms as they can survive in the environment for a number of years under suitable conditions. As light infections can be carried asymptomatically, host animals can spread the disease readily. Older dogs tend to have a higher burden than younger dogs due to accumulation over the life of the animal. |