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We report an exceptionally high rate of infection by Haplorchis taichui (Nishigori, 1924) in human populations on Mindanao Island, southern Philippines. This intestinal fluke is seldom encountered, and this is the first report of high prevalence of infection (36%) in humans by H. taichui in the Philippines. The likely source of haplorchine infection has been linked to consumption of raw or undercooked freshwater fish containing infective metacercariae. The most common clinical symptoms appeared as upper abdominal discomfort or pain and borborygmi. Praziquantel (75 mg/kg divided in 3 doses in 1 day) was a well-tolerated and effective treatment for infection by H. taichui.

Original publication

DOI

10.1645/GE-3304RN

Type

Journal article

Journal

J Parasitol

Publication Date

10/2004

Volume

90

Pages

1165 - 1169

Keywords

Adolescent, Adult, Age Distribution, Aged, Animals, Anthelmintics, Child, Child, Preschool, Cohort Studies, Cross-Sectional Studies, Feces, Female, Food Parasitology, Fresh Water, Heterophyidae, Humans, Infant, Male, Middle Aged, Philippines, Praziquantel, Prevalence, Seafood, Sex Distribution, Trematode Infections