The disease is caused by a parasite that lives in fresh water snails and occurs most frequently in Africa and the Middle East.

Like most warblers, it is insectivorous and also feeds on water snails.

It eats water snails, soft-weed, and insects.

Adults hunt in ponds for other newts, tadpoles, young froglets, worms, insect larvae, and water snails.

On rare occasions, these frogs will eat water snails and brittle shells.

Clithon faba is a species of brackish water snail with an operculum, a nerite.

Neritina glabrata is a species of brackish water snail, a gastropod mollusk in the family Neritidae.

A third of its children have blood in their urine because of schistosomiasis, a parasitic disease transmitted by water snails.

These fresh water snails are present in aquariums and ponds, as well as in wild areas.

It is often confused with Nassarius obsoletus, a cooler water snail less suited to tropical marine aquarium temperatures.