Still on the clinical manifestations, with Fasciola sp, the signs are: abdominal pain, fever, nausea and vomiting; while Opisthorchiidea, the chronic signs: hepatomegaly, icterus are On the diagnosis, with Fasciola sp, based on clinical manifestation, ultra - sound, high peripheral blood eosinophilic count and ELISA test. With Opisthorchiidea, stool examination to look for the eggs is sufficient.