Oriental Liver Flukes 
3 main species exist:
1) Clonorchis sinenis in China, Taiwan, Korea, Japan and Vietnam carried by cats and dogs.
2) Opistriorchis felineus in Eastern Europe and carried by many animals.
3) Opisthorchis viverrini in Thailand carried by dogs and cats.

Humans acquire the parasite after eating raw, dried, or pickled fresh water fish. Millions of people are infected but only some have problems.

Symptoms include liver pain, fever, nausea, vomiting, and jaundice can occur. Diagnosis is by eggs in the stool. An anti-worm medication will cure this disease.

Oriental Liver Flukes reference links:

Tropical Medicine Central Resource http://tmcr.usuhs.mil/tmcr/chapter21/intro.htm

McGill University Centre for Tropical Diseases http://www.medicine.mcgill.ca/tropmed/txt/lecture%206%20handout.pdf
cdc http://www.dpd.cdc.gov/dpdx/HTML/Clonorchiasis.asp?body=Frames/A-F/Clonorchiasis/body_Clonorchiasis_page1.htm
tropeduweb. http://www.tropeduweb.ch/factsheets/fs_parasital_class_trematodes.html