High prevalence of Haplorchis taichui, Phaneropsolus molenkampi, and Other Helminth infections among people in Khammouane province, Lao PDR

Jong Yil Chai, Eun Taek Han, Eun Hee Shin, Woon Mok Sohn, Taisoon Yong, Keeseon S. Eom, Duk Young Min, Jin Young Um, Min Sung Park, Eui Hyug Hoang, Bounlay Phommasack, Bounnaloth Insisiengmay, Soon Hyung Lee, Han Jong Rim

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The prevalence of liver and intestinal helminth infections, including Opisthorchis, Haplorchis, Phaneropsolus, hookworms, Enterobius, and Taenia, was surveyed in Khammouane province, Lao PDR. Fecal specimens were collected from 1,242 people (590 men and 652 women) in 3 Mekong riverside villages and were examined by the Kato-Katz thick smear technique. The overall helminth egg positive rate was 81.1%. The positive rate for small trematode eggs, including Opisthorchis viverrini, heterophyids, and lecithodendriids, was 81.1% and the positive rate for hookworms was 6.7%. To obtain adult worms, 35 people who were positive for small trematode eggs were treated with 20-30 mg/kg praziquantel and 10-15 mg/kg pyrantel pamoate, and then purged. Diarrheic stools were collected from 33 of these people and searched for helminth parasites using a stereomicroscope. Mixed infections with various helminths (Haplorchis taichui, Haplorchis yokogawai, Prosthodendrium molenkampi, Phaneropsolus bonnei, echinostomes, hookworms, Trichostrongylus spp., Trichuris trichiura, Enterobius vermicularis, and/or Taenia saginata) were found. The total number of helminth specimens collected was 20,907 (approximately 634 per person). The most common species was H. taichui, followed by P. molenkampi, O. viverrini, P. bonnei, E. vermicularis, hookworms, and Trichostrongylus spp. These results show that diverse species of intestinal nematodes, trematodes, and cestodes are infecting humans in Khammouane province, Lao PDR.

Original languageEnglish
Pages (from-to)243-247
Number of pages5
JournalKorean Journal of Parasitology
Volume47
Issue number3
DOIs
Publication statusPublished - 2009 Sep 23

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Laos
Helminths
Ancylostomatoidea
Opisthorchis
Enterobius
Trichostrongylus
Infection
Eggs
Pyrantel Pamoate
Taenia saginata
Trichuris
Taenia
Praziquantel
Cestoda
Coinfection
Ovum
Parasites
Liver

All Science Journal Classification (ASJC) codes

  • Parasitology
  • Infectious Diseases

Cite this

Chai, Jong Yil ; Han, Eun Taek ; Shin, Eun Hee ; Sohn, Woon Mok ; Yong, Taisoon ; Eom, Keeseon S. ; Min, Duk Young ; Um, Jin Young ; Park, Min Sung ; Hoang, Eui Hyug ; Phommasack, Bounlay ; Insisiengmay, Bounnaloth ; Lee, Soon Hyung ; Rim, Han Jong. / High prevalence of Haplorchis taichui, Phaneropsolus molenkampi, and Other Helminth infections among people in Khammouane province, Lao PDR. In: Korean Journal of Parasitology. 2009 ; Vol. 47, No. 3. pp. 243-247.
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title = "High prevalence of Haplorchis taichui, Phaneropsolus molenkampi, and Other Helminth infections among people in Khammouane province, Lao PDR",
abstract = "The prevalence of liver and intestinal helminth infections, including Opisthorchis, Haplorchis, Phaneropsolus, hookworms, Enterobius, and Taenia, was surveyed in Khammouane province, Lao PDR. Fecal specimens were collected from 1,242 people (590 men and 652 women) in 3 Mekong riverside villages and were examined by the Kato-Katz thick smear technique. The overall helminth egg positive rate was 81.1{\%}. The positive rate for small trematode eggs, including Opisthorchis viverrini, heterophyids, and lecithodendriids, was 81.1{\%} and the positive rate for hookworms was 6.7{\%}. To obtain adult worms, 35 people who were positive for small trematode eggs were treated with 20-30 mg/kg praziquantel and 10-15 mg/kg pyrantel pamoate, and then purged. Diarrheic stools were collected from 33 of these people and searched for helminth parasites using a stereomicroscope. Mixed infections with various helminths (Haplorchis taichui, Haplorchis yokogawai, Prosthodendrium molenkampi, Phaneropsolus bonnei, echinostomes, hookworms, Trichostrongylus spp., Trichuris trichiura, Enterobius vermicularis, and/or Taenia saginata) were found. The total number of helminth specimens collected was 20,907 (approximately 634 per person). The most common species was H. taichui, followed by P. molenkampi, O. viverrini, P. bonnei, E. vermicularis, hookworms, and Trichostrongylus spp. These results show that diverse species of intestinal nematodes, trematodes, and cestodes are infecting humans in Khammouane province, Lao PDR.",
author = "Chai, {Jong Yil} and Han, {Eun Taek} and Shin, {Eun Hee} and Sohn, {Woon Mok} and Taisoon Yong and Eom, {Keeseon S.} and Min, {Duk Young} and Um, {Jin Young} and Park, {Min Sung} and Hoang, {Eui Hyug} and Bounlay Phommasack and Bounnaloth Insisiengmay and Lee, {Soon Hyung} and Rim, {Han Jong}",
year = "2009",
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doi = "10.3347/kjp.2009.47.3.243",
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Chai, JY, Han, ET, Shin, EH, Sohn, WM, Yong, T, Eom, KS, Min, DY, Um, JY, Park, MS, Hoang, EH, Phommasack, B, Insisiengmay, B, Lee, SH & Rim, HJ 2009, 'High prevalence of Haplorchis taichui, Phaneropsolus molenkampi, and Other Helminth infections among people in Khammouane province, Lao PDR', Korean Journal of Parasitology, vol. 47, no. 3, pp. 243-247. https://doi.org/10.3347/kjp.2009.47.3.243

High prevalence of Haplorchis taichui, Phaneropsolus molenkampi, and Other Helminth infections among people in Khammouane province, Lao PDR. / Chai, Jong Yil; Han, Eun Taek; Shin, Eun Hee; Sohn, Woon Mok; Yong, Taisoon; Eom, Keeseon S.; Min, Duk Young; Um, Jin Young; Park, Min Sung; Hoang, Eui Hyug; Phommasack, Bounlay; Insisiengmay, Bounnaloth; Lee, Soon Hyung; Rim, Han Jong.

In: Korean Journal of Parasitology, Vol. 47, No. 3, 23.09.2009, p. 243-247.

Research output: Contribution to journalArticle

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AU - Shin, Eun Hee

AU - Sohn, Woon Mok

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AU - Eom, Keeseon S.

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AU - Um, Jin Young

AU - Park, Min Sung

AU - Hoang, Eui Hyug

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