In addition, while the infection prevalence of C. auratus with O. viverrini metacercariae is high, the intensity of infection is low. Recently, local people have started preparing a new raw fish dish with sea fish and mostly sell it as sashimi in the local restaurants. Until now, no studies have shown the presence of O. viverrini metacercariae in sea fish.This may explain why in our study, the participants who ate small freshwater fish (“diec’ fish) were more at risk for infection with O.viverrini than the people who ate raw fish prepared from sea fish.