These parasites are found in the fresh waters of the slow tropical areas of America, Africa, Asia, Japan, the Philippines and other Pacific islands. In the salt waters of the fluke are not found.
In case of contact with the fluke penetrates through the skin or through the swarming of the water used for drinking or bathing. They feed on red blood cells and lay eggs in the cells of the blood or intestines.
Purely wash it will help you to avoid contact with these parasites.