title: Fishborne trematode metacercariae detected in freshwater fish from Vientiane Municipality and Savannakhet Province, Lao PDR.
abstract: Freshwater fish from Vientiane Municipality and Savannakhet Province, Lao PDR were examined by the muscle compression and artificial digestion methods to know the infection status with trematode metacercariae. In the fish from Savannakhet, 2 species of metacercariae, Opisthorchis viverrini and Haplorchis taichui, were detected. O. viverrini metacercariae were found in 6 species of fish, Puntius brevis, Hampala dispar, Esomus metallicus, Mystacoleucus marginatus, Puntioplites falcifer, and Cyclocheilichthys armatus. H. taichui metacercariae were detected in 3 species of fish, P. brevis, P. falcifer, and M. marginatus. In the fish from Vientiane, 4 species of metacercariae, O. viverrini, H. taichui, Haplorchis yokogawai, and Centrocestus formosanus, were detected. Among them, O. viverrini metacercariae were found in 7 species of fish, Onychostoma elongatum, C. armatus, H. dispar, P. brevis, Cyclocheilichthys repasson, Osteochilus hasseltii, and Hypsibarbus lagleri. The metacercariae of H. taichui were detected in 6 species of fish, C. repasson, O. elongatum, C. armatus, H. dispar, Labiobarbus leptocheila, and Cirrhinus molitorella. The metacercariae of H. yokogawai were found in 9 species of fish, C. repasson, O. elongatum, C. armatus, H. dispar, Labiobarbus leptocheila, O. hasseltii. C. molitorella, Hypsibarbus wetmorei, and H. lagleri. The metacercariae of C. formosanus were detected in 4 species of fish, C. repasson, P. brevis, O. hasseltii, and C. molitorella. From these results, it is confirmed that fishborne trematode metacercariae, i.e. O. viverrini, H. taichui, H. yokogawai and C. formosanus, are prevalent in various species of freshwater fish from Savannakhet Province and Vientiane Municipality, Lao PDR.
authors.affiliation: Department of Parasitology, College of Medicine, Korea University, Seoul 136-705, Korea.
authors.forename: Han-Jong
authors.initials: HJ
authors.lastname: Rim
authors.forename: Woon-Mok
authors.initials: WM
authors.lastname: Sohn
authors.forename: Tai-Soon
authors.initials: TS
authors.lastname: Yong
authors.forename: Keeseon S
authors.initials: KS
authors.lastname: Eom
authors.forename: Jong-Yil
authors.initials: JY
authors.lastname: Chai
authors.forename: Duk-Young
authors.initials: DY
authors.lastname: Min
authors.forename: Soon-Hyung
authors.initials: SH
authors.lastname: Lee
authors.forename: Eui-Hyug
authors.initials: EH
authors.lastname: Hoang
authors.forename: Bounlay
authors.initials: B
authors.lastname: Phommasack
authors.forename: Sithat
authors.initials: S
authors.lastname: Insisengmay
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000453:epidemiology / Q000469:parasitology*; D005399:Fishes; D005618:Fresh Water; D007812:Laos / Q000453:epidemiology; D014200:Trematoda / Q000033:anatomy & histology / Q000145:classification; D014201:Trematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*