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http://dx.doi.org/10.3347/kjp.2015.53.4.447

Infection Status of Zoonotic Trematode Metacercariae in Fishes from Vientiane Municipality and Champasak Province in Lao PDR  

Eom, Keeseon S. (Department of Parasitology and Medical Research Institute, Chungbuk National University School of Medicine)
Park, Han-Sol (Department of Parasitology and Medical Research Institute, Chungbuk National University School of Medicine)
Lee, Dongmin (Department of Parasitology and Medical Research Institute, Chungbuk National University School of Medicine)
Sohn, Woon-Mok (Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine)
Yong, Tai-Soon (Department of Environmental Medical Biology and Institute of Tropical Medicine, Yonsei University College of Medicine)
Chai, Jong-Yil (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center)
Min, Duk-Young (Department of Microbiology and Immunology, Eulji University College of Medicine)
Rim, Han-Jong (Department of Parasitology, College of Medicine, Korea University)
Insisiengmay, Bounnaloth (Department of Hygiene and Prevention, Ministry of Public Health)
Phommasack, Bounlay (Department of Hygiene and Prevention, Ministry of Public Health)
Publication Information
Parasites, Hosts and Diseases / v.53, no.4, 2015 , pp. 447-453 More about this Journal
Abstract
The infection status of fishborne zoonotic trematode (FZT) metacercariae was investigated in fishes from 2 localities of Lao PDR. Total 157 freshwater fishes (17 species) were collected in local markets of Vientiane Municipality and Champasak Province in December 2010 and July 2011, and each fish was examined by the artificial digestion method. Total 6 species of FZT metacercariae, i.e., Opisthorchis viverrini, Haplorchis taichui, Haplorchis yokogawai, Haplorchis pumilio, Centrocestus formosanus, and Procerovum varium, were detected in fishes from Vientiane Municipality. The metacercariae of O. viverrini were detected in 50 (49.5%) out of 101 fishes (6 species), and their average number was 154 per fish infected. The remaining 5 species of heterophyid metacercariae were detected in 36.8%, 65.8%, 9.4%, 23.9%, and 5.1% fishes examined, and their average densities were 12, 1,038, 4, 15, and 13 per infected fish, respectively. In fishes from Champasak Province, 3 species of FZT metacercariae, i.e., O. viverrini, H. taichui, and H. yokogawai, were detected. Only 2 O. viverrini metacercariae were found in only 1 Barbonymus schwanefeldi. The metacercariae of H. taichui and H. yokogawai were detected in 60.0% and 50.0% of fishes examined, and their average densities were 47 and 28 per fish infected. By the present study, it has been confirmed that several species of FZT metacercariae are prevalent in fishes from Vientiane Municipality, with P. varium being a new member of FZT in Lao PDR. In comparison, FZT metacercariae are less prevalent in fishes from Champasak Province.
Keywords
Opisthorchis viverrini; Haplorchis taichui; Haplorchis yokogawai; Haplorchis pumilio; Centrocestus formosanus; Procerovum varium; fishborne trematode (FBT) metacercaria; Lao PDR;
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Times Cited By KSCI : 9  (Citation Analysis)
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