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

The Korean Journal of Parasitology
Keeseon S EomBounlay Phommasack

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 examin...Continue Reading

References

Sep 7, 2005·International Journal for Parasitology·Jong-Yil ChaiAlan J Lymbery
Sep 19, 2007·The Korean Journal of Parasitology·Jong-Yil ChaiHan-Jong Rim
Mar 18, 2008·The Korean Journal of Parasitology·Eun Taek HanJong Yil Chai
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Nov 3, 2012·The Journal of Parasitology·Jong-Yil ChaiHan-Jong Rim
Mar 8, 2013·The Korean Journal of Parasitology·Han-Jong RimSithat Insisiengmay
Mar 14, 2014·The Korean Journal of Parasitology·Jong-Yil ChaiDuong Socheat
Mar 14, 2014·The Korean Journal of Parasitology·Keeseon S EomBounlay Phommasack

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