Trematoda
Echinostomiasis
Infection by flukes of the genus Echinostoma.
Heterophyidae
Echinostoma
Schistosomatidae
Platyhelminths
Fasciola hepatica
A species of helminth commonly called the sheep liver fluke. It occurs in the biliary passages, liver, and gallbladder during various stages of development. Snails and aquatic vegetation are the intermediate hosts. Occasionally seen in man, it is most common in sheep and cattle.
Snails
Lymnaea
A genus of dextrally coiled freshwater snails that includes some species of importance as intermediate hosts of parasitic flukes.
Host-Parasite Interactions
Opisthorchis
A genus of trematode liver flukes of the family Opisthorchidae. It consists of the following species: O. felineus, O. noverca (Amphimerus noverca), and O. viverrini. The intermediate hosts are snails, fish, and AMPHIBIANS.
Korea
Former kingdom, located on Korea Peninsula between Sea of Japan and Yellow Sea on east coast of Asia. In 1948, the kingdom ceased and two independent countries were formed, divided by the 38th parallel.