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Updated: May 18, 2026

Transient Transduction of the Strobilated Forms of Echinococcus granulosus
Published on: September 16, 2022
Echinostome flukes receovered from humans in Khammouane Province, Lao PDR
Jong-Yil Chai1, Woon-Mok Sohn, Tai-Soon Yong
1Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul, Korea. cjy@snu.ac.kr
Abstract:
Echinostome eggs were detected in 22 (1.1%) of 2,074 people residing in riparian villages along the Mekong River in Khammouane Province, Lao PDR. In order to recover the adult flukes, 9 persons were treated with praziquantel and purged with magnesium salts. A total of 55 echinostome specimens (4 species) were recovered from the 9 persons. Echinostoma revolutum (8 specimens) was recovered from 3 persons, Artyfechinostomum malayanum (8 specimens) was from 2 persons, Echinochasmus japonicus (33 specimens) was from 7 persons, and Euparyphium sp. (6 specimens) was from 1 person. In Lao PDR, only human infections with E. japonicus were previously known. Therefore, the present study describes human infections with E. revolutum, A. malayanum, and Euparyphium sp. for the first time in Lao PDR. These results indicate that the surveyed villages of Khammouane Province, Lao PDR are low-grade endemic foci of echinostomiasis.
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