We performed an epidemiologic survey of opisthorchiasis in Yangon, Myanmar. The fecal egg-positive rate of residents was 0.7%, and we recovered an adult fluke after chemotherapy and purging of an egg-positive resident. We detected Opisthorchis viverrini metacercariae in freshwater fish. We found the Yangon area to have low-grade endemicity of opisthorchiasis.
Keywords: Metacercaria; Myanmar; Opisthorchis viverrini; adult worm recovery; cholangiocarcinoma; helminths; liver fluke; parasites; zoonoses.