Food-borne trematodes (FBT) are a significant cause of parasitic infections in Xai Udom, Laos, with infection rates of 68.8% in May 1999 and 65.9% in December 1999.
The most prevalent parasite was the liver fluke Opisthorchis viverrini, with infection rates decreasing with age, while other parasites like soil-transmitted nematodes appeared less frequently.
Despite having access to effective treatments, FBT continue to pose a serious health risk in this fishing community, remaining a concern similar to previous years.