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MedGenMed. 2002 Jul 9;4(3):6.

High prevalence of Fasciolopsis buski in an endemic area of liver fluke infection in Thailand.

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Department of Laboratory Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330 Thailand.


There is a high prevalence of Fasciolopsis buski in Sawasdee Village in the Nam Som District, Udonthani Province in northeastern Thailand, an endemic area of liver fluke infection. From stool examination of 183 villagers participating in the study, the authors detected a fluke parasitic infection rate of 14.8% (27 cases). Of interest, the authors found a similar high prevalence of both Opisthorchis viverrini (16 cases, 8.7%) and F buski (13 cases, 7.1%). This region is the endemic area of liver fluke, not of F buski. The surrounding environment is the hill area of Nayoong Namsom mountain, which is not a suitable area for F buski larvae. However, the village has been inhabited by a number of immigrants from various regions of Thailand over the past few years. The F buski can be carried by these people, possibly explaining the migration of the fluke parasite to this setting. The nonendemic parasite infection was also detected at high prevalence in the community. Wide spectrum control for various parasitic infections in villages like Sawasdee is necessary.

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