When common parasites of dogs and cats infect humans, the illness is called toxocariasis (or visceral larva migrans). Toxocariasis usually affects kids under age 10. Especially at risk are those who like to put things in their mouths, or kids whose families have pet dogs or cats.Toxocariasis is a zoonotic (animal-to-human) disease caused by infection of the parasitic nematodes (roundworms), Toxocara canis and Toxocara cati. These parasites flourish in the lumen of the small intestine of dogs and cats and the eggs are excreted into the environment.
The use of these drugs is unproven in the case of ocular toxocariasis. There is some support for the use of albendazole or thiabendazole to eradicate the organism. Albendazole is the preference of some physicians as it has increased blood brain barrier penetration.In the Poland, about 398 cases of Toxocara infection are reported in humans each year. Almost 12 % of the Poland population is infected with Toxocara.