Toxocara in sandpits of public playgrounds and kindergartens in Flanders (Belgium).

Belgium counts more than a million dogs and at least two million cats, of which many are carrying zoonotic nematodes of the genus Toxocara. Environmental contamination with worm eggs is considered the key transmission route from animals to humans, and mainly young children are at risk. Contamination of soil with Toxocara eggs has been reported from all over the world, but data are lacking for Belgium.