OpisthorchiasisOpisthorchisPraziquantelFood ParasitologyThailandAnthelminticsMekong ValleySchistosomicidesLaosAntibodies, HelminthAntigens, HelminthParasite Egg CountSchistosomiasis mansoniSchistosoma haematobiumSchistosomiasis haematobiaSchistosoma mansoniClonorchiasisOxamniquineSchistosomiasisAlbendazoleTrematode InfectionsPlatyhelminthsSchistosomiasis japonicaSchistosomaSchistosoma japonicumMethopreneAntiparasitic AgentsCestode InfectionsClonorchis sinensis