Arrested development leaves the larvae to wander aimlessly in the body, causing inflammation, most commonly in the liver and lungs.

In children without exposure to animals, eggs can be introduced by directly ingesting egg-contaminated soil while playing in a yard or on a playground.

Direct identification of larvae in human disease is not feasible, so the diagnosis relies on history supported by serologic ELISA assay.

A great deal of information on this subject can be found on the computer sites maintained by the Companion Animal Parasite Council.

[citation needed] Visceral toxocariasis in humans (or dogs) can be treated with antiparasitic drugs such as albendazole or mebendazole, usually in combination with anti-inflammatory medications.