Browse > Article
http://dx.doi.org/10.3347/kjp.2015.53.4.439

Intestinal Helminths Recovered from Humans in Xieng Khouang Province, Lao PDR with a Particular Note on Haplorchis pumilio Infection  

Chai, Jong-Yil (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine)
Sohn, Woon-Mok (Department of Parasitology and Institute of Health Sciences, Gyeongsang National University School of Medicine)
Jung, Bong-Kwang (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine)
Yong, Tai-Soon (Department of Environmental Medical Biology, Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine)
Eom, Keeseon S. (Department of Parasitology and Medical Research Institute, Parasite Resource Bank, Chungbuk National University School of Medicine)
Min, Duk-Young (Department of Microbiology and Immunology, School of Medicine, Eulji University)
Insisiengmay, Bounnaloth (Department of Hygiene and Prevention, Ministry of Public Health)
Insisiengmay, Sithat (Department of Hygiene and Prevention, Ministry of Public Health)
Phommasack, Bounlay (Department of Hygiene and Prevention, Ministry of Public Health)
Rim, Han-Jong (Department of Parasitology, College of Medicine, Korea University)
Publication Information
Parasites, Hosts and Diseases / v.53, no.4, 2015 , pp. 439-445 More about this Journal
Abstract
A survey of intestinal helminths was undertaken in riparian people in Xieng Khouang Province, Lao PDR. Fecal specimens were collected from 643 people (289 males and 354 females) residing in 4 districts (Nonghet, Kham, Phoukout, and Pek) and were examined by the Kato-Katz technique. The overall helminth egg positive rate was 41.2%, and hookworms revealed the highest prevalence (32.7%) followed by Trichuris trichiura (7.3%) and Ascaris lumbricoides (5.6%). The positive rate for small trematode eggs (STE), which may include Opisthorchis viverrini, heterophyids, and lecithodendriids, was 4.4%. For recovery of adult helminths, 12 STE or nematode/cestode egg-positive people were treated with 40 mg/kg praziquantel and 15 mg/kg pyrantel pamoate, and then purged. Mixed infections with 2 Haplorchis species (H. pumilio and H. taichui), Centrocestus formosanus, Opisthorchis viverrini, a species of cestode (Taenia saginata), and several species of nematodes including hookworms and Enterobius vermicularis were detected. The worm load for trematodes was the highest for H. pumilio with an average of 283.5 specimens per infected person followed by C. formosanus, H. taichui, and O. viverrini. The worm load for nematodes was the highest for hookworms (21.5/infected case) followed by E. vermicularis (3.2/infected case). The results revealed that the surveyed areas of Xieng Khouang Province, Lao PDR are endemic areas of various species of intestinal helminths. The STE found in the surveyed population were verified to be those of heterophyids, particularly H. pumilio.
Keywords
Haplorchis pumilio; Haplorchis taichui; intestinal fluke; Lao PDR;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
1 Rim HJ, Chai JY, Min DY, Cho SY, Eom KS, Hong SJ, Sohn WM, Yong TS, Deodato G, Standgaard H, Phommasack B, Yun CH, Hoang EH. Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos. Parasitol Res 2003; 91: 267-272.   DOI
2 Chai JY, Park JH, Han ET, Guk SM, Shin EH, Lin A, Kim JL, Sohn WM, Yong TS, Eom KS, Min DY, Hwang EH, Phommasack B, Insisiengmai B, Rim HJ. Mixed infections with Opisthorchis viverrini and intestinal flukes in residents of Vientiane Municipality and Saravane Province in Laos. J Helminthol 2005; 79: 283-289.   DOI
3 Chai JY, Yong TS, Eom KS, Min DY, Shin EH, Banouvong V, Insisiengmay B, Insisiengmay S, Phommasack B, Rim HJ. Prevalence of the intestinal flukes Haplorchis taichui and H. yokogawai in a mountainous area of Phongsaly Province, Lao PDR. Korean J Parasitol 2010; 48: 339-342.   DOI
4 Chai JY, Yong TS, Eom KS, Min DY, Jeon HK, Kim TY, Jung BK, Sisabath L, Insisiengmay B, Phommasack B, Rim HJ. Hyperendemicity of Haplorchis taichui infection among riparian people in Saravane and Champasak Province, Lao PDR. Korean J Parasitol 2013; 51: 305-311.   DOI
5 Sayasone S, Vonghajack Y, Vanmany M, Rasphone O, Tesana S, Utzinger J, Akkhavong K, Odermatt P. Diversity of human intestinal helminthiasis in Lao PDR. Trans R Soc Trop Med Hyg 2009; 103: 247-254.   DOI
6 Sohn WM, Yong TS, Eom KS, Min DY, Lee D, Jung BK, Banouvong V, Insisiengmay B, Phammasack B, Rim HJ, Chai JY. Prevalence of Haplorchis taichui among humans and fish in Luang Prabang Province, Lao PDR. Acta Trop 2014; 136: 74-80.   DOI
7 Chai JY, Hongvanthong B. A small-scale survey of intestinal helminthic infections among the residents near Pakse, Laos. Korean J Parasitol 1998; 36: 55-58.   DOI
8 Chai JY, Han ET, Guk SM, Shin EH, Sohn WM, Yong TS, Eom KS, Lee KH, Jeong HG, Ryang YS, Hoang EH, Phommasack B, Insisiengmai B, Lee SH, Rim HJ. High prevalence of liver and intestinal fluke infections among residents of Savannakhet Province, Laos. Korean J Parasitol 2007; 45: 213-218.   DOI
9 Chai JY, Han ET, Shin EH, Sohn WM, Yong TS, Eom KS, Min DY, Um JY, Park MS, Hoang EH, Phommasack B, Insisiengmay B, Lee SH, Rim HJ. High prevalence of Haplorchis taichui, Prosthodendrium molenkampi, and other helminth infections among people in Khammouane Province, Lao PDR. Korean J Parasitol 2009; 47: 243-247.   DOI
10 Sayasone S, Mak TK, Vanmany M, Rasphone O, Vounatsou R, Utzinger J, Akkhavong K, Odermatt P. Helminth and intestinal protozoa infections, multiparasitism and risk factors in Champasack Province, Lao PDR. PLoS Negl Trop Dis 2011; 5: e1037.   DOI
11 Sato M, Pongvongsa T, Sanguankiat S, Yoonuan T, Kobayashi J, Boupha B, Nishimoto F, Moji K, Sato MD, Waikagul J. Patterns of trematode infections of Opisthorchis viverrini (Opisthorchiidae) and Haplorchis taichui (Heterophyidae) in human populations from two villages in Savannakhet Province, Lao PDR. J Helminthol 2015; 89: 439-445.   DOI
12 Chai JY, Sohn WM, Yong TS, Eom KS, Min DY, Lee MY, Lim H, Insisiengmay B, Phammasack B, Rim HJ. Centrocestus formosanus (Heterophyidae): human infections and the infection source in Lao PDR. J Parasitol 2013; 99: 531-536.   DOI
13 Muth S, Sayasone S, Odermatt-Biays S, Phomphida S, Duong S, Odermatt P. Schistosoma mekongi in Cambodia and Lao Peoples’ Democratic Republic. Adv Parasitol 2010; 72: 179-203.   DOI
14 Odermatt P, Veasna D, Zhang W, Vannavong N, Phrommala S, Habe S, Barennes H, Strobel M. Rapid identification of paragonimiasis foci by lay informants in Lao Peoples’ Democratic Republic. PLoS Negl Trop Dis 2009; 3: e521.   DOI
15 Sayasone S, Tesana S, Utzinger J, Hatz C, Akkhavong K, Odermatt P (2009b) Rare human infection with the trematode Echinochasmus japonicus in Lao PDR. Parasitol Int 2009; 58: 106-109.   DOI
16 Chai JY, Murrell KD, Lymbery AJ. Fish-borne parasitic zoonoses: status and issues. Int J Parasitol 2005; 35: 1233-1254.   DOI
17 Chai JY, Sohn WM, Yong TS, Eom KS, Min DY, Hoang EH, Phammasack B, Insisiengmay B, Rim HJ. Echinostome flukes recovered from humans in Khammouane Province, Lao PDR. Korean J Parasitol 2012; 50: 269-272.   DOI
18 Jeon HK, Yong TS, Sohn WM, Chai JY, Min DY, Yun CH, Rim HJ, Pongvongsa T, Banouvong V, Insisiengmay B, Phommasack B, Eom KS. Current status of human taeniasis in Lao People’s Democratic Republic. Korean J Parasitol 2013; 51: 259-263.   DOI
19 Dung DT, De NV, Waikagul J, Dalsgaard A, Chai JY, Sohn WM, Murrell KD. Fishborne zoonotic intestinal trematodes, Vietnam. Emerg Infect Dis 2007; 13: 1828-1833.   DOI
20 Sukontason K, Unpunyo P, Sukontason KL, Piangjai S. Evidence of Haplorchis taichui infection as pathogenic parasite: three case reports. Scand J Infect Dis 2005; 37: 388-390.   DOI
21 Watthanakulpanich D, Waikagul J, Maipanich W, Nuamtanong S, Sanguankiat S, Pubampen S, Praevanit R, Mongkhonmu S, Nawa Y. Haplorchis taichui as a possible etiologic agent of irritable bowel syndrome-like symptoms. Korean J Parasitol 2010; 48: 225-229.   DOI
22 Laymanivong S, Hongvanthong B, Keokhamphavanh, Phommasack M, Phinmaland B, Sanpool O, Maleewong W, Intapan PM. Current status of human hookworm infections, ascariasis, trichuriasis, schistosomiasis mekongi and other trematodiases in Lao Peoples’ Democratic Republic. Am J Tryp Med Hyg 2014; 90: 667-669.   DOI
23 Conlan J, Vongxay K, Khamlome B, Dorny P, Sripa B, Elliot A, Blacksell SD, Fenwick S, Thompsom RCA. A cross-sectional study of Taenia solium in a multiple taeniid-endemic region reveals competition may be protective. Am J Trop Med Hyg 2012; 87: 281-291.   DOI
24 Eom KS, Yong TS, Sohn WM, Chai JY, Min DY, Rim JH, Jeon HK, Banouvong V, Insisiengmay B, Phommasack B. Prevalence of helminthic infections among inhabitants of Lao PDR. Korean J Parasitol 2014; 52: 51-56.   DOI
25 Conlan J, Khounsy S, Inthavong, Fenwick S, Blacksell S, Thompsom RCA. A review of taeniasis and cysticercosis in the Lao Peoples’ Democratic Republic. Parasitol Int 2008; 57: 252-255.   DOI