<unk>  is estimated to be the third-most prevalent worm parasite in the world. It is endemic to Russia, Japan, China, Taiwan, Korea, and Southeast Asia, especially Vietnam. In Asia it is the most prevalent human trematode, with over 15 million people estimated to be infected and 200 million people at constant risk of infection. China has the highest incidence with about 13 million infections, accounting for 85% of the total cases. Infection rates are generally higher in men, fishermen, farmers, businessmen, and catering staff. The infection is more serious in adults aged 40-60 and the elderly. More cases occur in low- or middle-class countries, increasing the disease burden and creating economic problems.<unk> sis causes 275,370 disability-adjusted life years (DALY) globally. The calculated economic burden for treating<unk> sis-related ailments in the Guangdong Province of China alone was $200 million by 2010. The type of freshwater fishes and shrimp that are infected by<unk>  contributes to the prevalence of infection. Commonly eaten fishes (e.g. C. idellus, C. auratus, H. nobilis, C. carpio, H. molitrix, and M. anguillicaudatus) were found to have the metacercariae when sampled from lakes, rivers, and markets. In total, almost 31 types of freshwater fish and shrimp were found to carry the parasite.
Clonorchis sinensis
Echinostoma cinetorchis
Haplorchis taichui
Taenia asiatica
Opisthorchis felineus
Taenia solium
Opisthorchis viverrini
Schistosoma japonicum