Fascioliasis is an infection caused by the liver fluke, a type of parasitic worm known as Fasciola hepatica. This parasite typically lives in the liver of various animals, including cattle and sheep, and can be transmitted to humans through contaminated water or food. When ingested, the fluke can cause symptoms like abdominal pain, fever, and jaundice, as it damages the liver and bile ducts. Preventing fascioliasis involves proper sanitation and avoiding eating raw or undercooked aquatic plants, which may harbor the larvae. Treatment usually includes medications like triclabendazole, which effectively kill the parasites and help restore health.