Liver fluke

Inside, the mouth leads to a small pharynx which is followed by an extended intestine that runs the entire length of the body.

Fasciolosis of sheep, goats and cattle, is the major cause of economic losses in dairy and meat industry.

[5] Fasciolosis of humans produces clinical symptoms such as fever, nausea, swollen liver, extreme abdominal pain, jaundice and anemia.

In many infections these symptoms cause further complications such as stone formation, recurrent pyogenic cholangitis and cancer (cholangiocarcinoma).

[8] Clonorchis sinensis and Opisthorchis viverrini are both categorized by the International Agency for Research on Cancer (IARC) as Group 1 carcinogens.