Parasites, Hosts and Diseases

The Korea Society for Parasitology and Tropical Medicine (대한기생충학·열대의학회)
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Indochinamon ou (Crustacea: Potamidae) as a New Second Intermediate Host for Paragonimus harinasutai in Luang Prabang Province, Lao PDR

  • Sohn, Woon-Mok (Department of Parasitology and Institute of Health Science, Gyeongsang National University College of Medicine) ;
  • Ryu, Jae-Sook (Department of Parasitology, Hanyang University College of Medicine) ;
  • Min, Duk-Young (Department of Parasitology, Hanyang University College of Medicine) ;
  • Song, Hyun-Ouk (Department of Parasitology, Hanyang University College of Medicine) ;
  • Rim, Han-Jong (Korea Association of Health Promotion) ;
  • Vonghachack, Youthanavanh (Department of Parasitology, Faculty of Medical Sciences, National University of Laos) ;
  • Bouakhasith, Daluny (Department of Parasitology, Faculty of Medical Sciences, National University of Laos) ;
  • Banouvong, Virasack (Malaria Center)
  • Published : 2009.03.31
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Abstract

Paragonimus harinasutai metacercariae were found in a species of freshwater crab, Indochinamon ou, collected in a small stream of Namback District, Luang Prabang Province, Lao PDR. Adult flukes were recovered after experimental infection of the metacercariae to dogs. Metacercariae were round or slightly elliptical, $0.666{\times}0.626\;mm$ in average size, and had a thin cyst wall of about $20{\mu}m$ in thickness, a black excretory bladder, convoluted ceca, and some pinkish materials in the body. Adults were somewhat elongated, $95.2{\times}36.5\;mm$ in average size, covered with single-tipped tegumental spines, had a smaller oral sucker than the ventral sucker, a moderately branched ovary, and 5-6 lobulated testes. Eggs were ovoid and bilaterally symmetrical in shape, $79{\times}45{\mu}m$ in average size, and had a uniformly thickened shell. By the present study, it has been confirmed that I. ou is a new second intermediate host for P. harinasutai.

Keywords

References

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