Heterophyes heterophyes

Heterophyes heterophyes is a human parasite.

This species occurs in Egypt, Sudan, Israel, Brazil, Spain, Turkey, Iran, India, and Russia. Common in north Africa, Asia Minor, Korea, China, Japan, Taiwan, and the Philippines. In Egypt, after looking at twelve populations of Cerithideopsilla conica, which is mud snail and carrier of Heterophyes heterophyes, it was found that the most infected snails were found in the Nile Delta compared to the Red sea coast and inland waters of the Delta. The transmission of Heterophyes heterophyes from, Pirenella conica, a snail, to fish which live in Northern Africa in lagoons that are connected to the sea. For transmission to occur from snails to fish the snails had to be larger than 5 mm.