Opisthorchiasis and Opisthorchis-associated cholangiocarcinoma in Thailand and Laos

▶ Opisthorchis viverrini, fish-borne parasite infection (liver fluke); infection acquired from undercooked freshwater fishes. ▶ Opisthorchiasis, highly prevalent in the Isan region of northeastern Thailand and Laos. ▶ Opisthorchis infection is a known cause of cholangiocarcinoma, bile duct cancer. ▶ Cholangiocarcinoma, like opisthorchiasis, is highly prevalent in Isan region of northeastern Thailand and in Laos. ▶ New public health measures are needed to control Opisthorchis-associated cholangiocarcinoma.