title: Fishborne trematode metacercariae in Luang Prabang, Khammouane, and Saravane Province, Lao PDR.
abstract: Fishborne trematode (FBT) metacercariae were investigated in fish from 3 Provinces of Lao PDR. Total 242 freshwater fish of 40 species were collected in local markets of Luang Prabang (59 fish of 16 species), Khammouane (81 fish of 19 species), and Saravane (97 fish of 14 species), and each of them was examined by artificial digestion method. Four species of metacercariae (Opisthorchis viverrini, Haplorchis taichui, Haplorchis yokogawai, and Centrocestus formosanus) were detected. O. viverrini was detected in 35 fish (14.5%), and their density was 252 per infected fish (Luang Prabang, 88 metacercariae in 5 fish; Khammouane, 187 in 6 fish; Saravane, 303 in 24 fish). H. taichui was found in 102 fish (42.1%), and their density was 485 per infected fish (Luang Prabang, 260 metacercariae in 38 fish; Khammouane, 1,084 in 23 fish; Saravane, 359 in 41 fish). H. yokogawai was detected in 92 fish (38.0%), and their density was 222 per infected fish (Luang Prabang, 362 metacercariae in 17 fish; Khammouane, 126 in 20 fish; Saravane, 214 in 55 fish). Metacercariae of C. formosanus were found in 8 fish (3.3%), and their density was 3 per infected fish. In the present study, it has been confirmed that FBT metacercariae, in particular, H. taichui, H. yokogawai, and O. viverrini, are highly prevalent in fish from Luang Prabang, Khammouane, and Saravane Province, Lao PDR.
authors: Department of Parasitology, Korea University College of Medicine, Seoul 136-705, Korea.
authors: Han-Jong
authors: HJ
authors: Rim
authors: Woon-Mok
authors: WM
authors: Sohn
authors: Tai-Soon
authors: TS
authors: Yong
authors: Keeseon S
authors: KS
authors: Eom
authors: Jong-Yil
authors: JY
authors: Chai
authors: Duk-Young
authors: DY
authors: Min
authors: Soon-Hyung
authors: SH
authors: Lee
authors: Eui-Hyug
authors: EH
authors: Hoang
authors: Bounlay
authors: B
authors: Phommasack
authors: Sithat
authors: S
authors: Insisiengmay
mesh_terms: D000818:Animals; D005393:Fish Diseases / Q000469:parasitology*; D007812:Laos / Q000453:epidemiology; D058488:Metacercariae / Q000145:classification / Q000302:isolation & purification; D059208:Parasite Load; D015995:Prevalence; D014200:Trematoda / Q000145:classification* / Q000302:isolation & purification*; D014201:Trematode Infections / Q000469:parasitology / Q000662:veterinary*
keywords: Centrocestus formosanus; Haplorchis taichui; Haplorchis yokogawai; Lao PDR; Opisthorchis viverrini; density; fishborne trematode; metacercaria; prevalence