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

• Published in: Korean journal of parasitology Vol. 53; no. 4; pp. 447 - 453
• Main Authors: Keeseon S. Eom, Chungbuk National University School of Medicine, Cheongju, Republic of Korea, Park, H.S., Chungbuk National University School of Medicine, Cheongju, Republic of Korea, Lee, D., Chungbuk National University School of Medicine, Cheongju, Republic of Korea, Sohn, W.M., Gyeongsang National University School of Medicine, Jinju, Republic of Korea, Yong, T.S., Yonsei University College of Medicine, Seoul, Republic of Korea, Chai, J.Y., Seoul National University Medical Research Center, Seoul, Republic of Korea, Min, D.Y., Eulji University College of Medicine, Daejeon, Republic of Korea, Rim, H.J., Korea University, Seoul, Republic of Korea, Insisiengmay, B., Ministry of Public Health, Vientiane, Lao, Phommasack, B., Ministry of Public Health, Vientiane, Lao
• Format: Journal Article
• Language: English
• Published: Korea (South) 대한기생충학열대의학회 01.08.2015; The Korean Society for Parasitology and Tropical Medicine
• Subjects: Animals; Female; Fish Diseases - epidemiology; Fish Diseases - parasitology; LAO PEOPLE'S DEMOCRATIC REPUBLIC; Laos; Male; Metacercariae - classification; Metacercariae - genetics; Metacercariae - growth & development; Metacercariae - isolation & purification; Opisthorchis viverrini,Haplorchis taichui,Haplorchis yokogawai, Haplorchis pumilio, Centrocestus formosanus,Procerovum varium,fishborne trematode (FBT) metacercaria,Lao PDR; Original; REPUBLICA DEMOCRATICA POPULAR LAO; REPUBLIQUE DEMOCRATIQUE POPULAIRE LAO; Trematoda - classification; Trematoda - genetics; Trematoda - growth & development; Trematoda - isolation & purification; Trematode Infections - epidemiology; Trematode Infections - parasitology; Trematode Infections - veterinary; Vietnam; Zoonoses - parasitology; Laos; Vietnam; Procerovum varium; fishborne trematode (FBT) metacercaria; Haplorchis pumilio; Lao PDR; Centrocestus formosanus; Haplorchis yokogawai; Haplorchis taichui; Opisthorchis viverrini
• ISSN: 0023-4001; 1738-0006
• DOI: 10.3347/kjp.2015.53.4.447

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