Fluke infections are diseases of the digestive tract and other organ systems caused by several different species of parasitic flatworms (Trematodes) that have complex life cycles involving hosts...
Liver flukes can be caused by eating undercooked pork products. Undercooked pork contains a bacteria that can cause liver flukes.
It belongs to the invertebrate class: Trematoda
Liver fluke causes damages to the human stomach
they absorb the nutrients in the liver that can cause serious sickness