<unk> , also known as the  common liver fluke or sheep liver fluke, is a parasitic flatworm of the class Trematoda, phylum Platyhelminthes that infects liver of a various mammals, including man. The disease caused by the fluke is called<unk> asis (also known as<unk> sis).<unk>  is world-wide distributed and causes great economic losses in sheep and cattle.
Fasciola hepatica
Schistosoma mansoni
Clonorchis sinensis
Echinococcus multilocularis
Trichinella spiralis
Trichuris trichiura
Onchocerca volvulus
Ascaris lumbricoides