Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos

Han Jong Rim, Jong Yil Chai, Duk Young Min, Seung Yull Cho, Keeseon S. Eom, Sung Jong Hong, Woon Mok Sohn, Tai Soon Yong, Giovanni Deodato, Hanne Standgaard, Bounlay Phommasack, Cheong Ha Yun, Eui Hyug Hoang

Research output: Contribution to journalArticle

113 Citations (Scopus)

Abstract

In order to investigate the epidemiological situation of intestinal parasite infections in Laos, parasitological surveys were carried out on a national scale including 17 provinces and the Vientiane Municipality. A total of 29,846 stool specimens were collected from primary schoolchildren from May 2000 to June 2002 and examined once with the cellophane thick smear technique. The cumulative egg positive rate for intes-tinal helminths was 61.9%. By species, the rate for Ascaris lumbricoides was 34.9%, hookworm 19.1%, Trichuris trichiura 25.8%, Opisthorchis viverrini 10.9%, Taenia spp. 0.6% and Hymenolepis spp. 0.2%. The northern mountainous regions such as Phongsaly, Huaphan or Saysomboune Province showed a higher prevalence (over 70%) of soil- transmitted helminths. The regions along the Mekong River such as Khammuane, Saravane or Savannakhet Province showed a higher prevalence (over 20%) of fish-borne parasites. On the other hand, Schistosoma mansoni eggs were detected in 1.7% of schoolchildren only in Champassak Province, a previously endemic area. The highest prevalence was noted in Phongsaly Province (96.0%) and the lowest in Bolikhamxay Province (27.5%). An additional small-scale survey by cellophane anal swab detected Enterobius vermicularis eggs in 35.7% of 451 schoolchildren aged 6-8 years in Khammuane, Vientiane, Champassak Province and the Vientiane Municipality. Meanwhile, the mean blood haemoglobin level of hookworm-infected children was not lower than that of children not infected with hookworm, suggesting that nutritional factors are more important than parasite infection per se. Nevertheless, the above results indicate that a nationwide parasite control project is necessary to reduce possible morbidity due to parasitic diseases in the country.

Original languageEnglish
Pages (from-to)267-272
Number of pages6
JournalParasitology Research
Volume91
Issue number4
DOIs
Publication statusPublished - 2003 Oct 1

Fingerprint

Laos
Ancylostomatoidea
Parasitic Diseases
school children
hookworms
Cellophane
Helminths
cellophane
parasites
Eggs
Hymenolepis
Opisthorchis
helminths
Enterobius
infection
Communicable Disease Control
Ascaris lumbricoides
Trichuris
Taenia
Opisthorchis viverrini

All Science Journal Classification (ASJC) codes

  • Parasitology
  • veterinary(all)
  • Insect Science
  • Infectious Diseases

Cite this

Rim, H. J., Chai, J. Y., Min, D. Y., Cho, S. Y., Eom, K. S., Hong, S. J., ... Hoang, E. H. (2003). Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos. Parasitology Research, 91(4), 267-272. https://doi.org/10.1007/s00436-003-0963-x
Rim, Han Jong ; Chai, Jong Yil ; Min, Duk Young ; Cho, Seung Yull ; Eom, Keeseon S. ; Hong, Sung Jong ; Sohn, Woon Mok ; Yong, Tai Soon ; Deodato, Giovanni ; Standgaard, Hanne ; Phommasack, Bounlay ; Yun, Cheong Ha ; Hoang, Eui Hyug. / Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos. In: Parasitology Research. 2003 ; Vol. 91, No. 4. pp. 267-272.
@article{27cf54c6ddce4a2f94f83a7c4e75923b,
title = "Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos",
abstract = "In order to investigate the epidemiological situation of intestinal parasite infections in Laos, parasitological surveys were carried out on a national scale including 17 provinces and the Vientiane Municipality. A total of 29,846 stool specimens were collected from primary schoolchildren from May 2000 to June 2002 and examined once with the cellophane thick smear technique. The cumulative egg positive rate for intes-tinal helminths was 61.9{\%}. By species, the rate for Ascaris lumbricoides was 34.9{\%}, hookworm 19.1{\%}, Trichuris trichiura 25.8{\%}, Opisthorchis viverrini 10.9{\%}, Taenia spp. 0.6{\%} and Hymenolepis spp. 0.2{\%}. The northern mountainous regions such as Phongsaly, Huaphan or Saysomboune Province showed a higher prevalence (over 70{\%}) of soil- transmitted helminths. The regions along the Mekong River such as Khammuane, Saravane or Savannakhet Province showed a higher prevalence (over 20{\%}) of fish-borne parasites. On the other hand, Schistosoma mansoni eggs were detected in 1.7{\%} of schoolchildren only in Champassak Province, a previously endemic area. The highest prevalence was noted in Phongsaly Province (96.0{\%}) and the lowest in Bolikhamxay Province (27.5{\%}). An additional small-scale survey by cellophane anal swab detected Enterobius vermicularis eggs in 35.7{\%} of 451 schoolchildren aged 6-8 years in Khammuane, Vientiane, Champassak Province and the Vientiane Municipality. Meanwhile, the mean blood haemoglobin level of hookworm-infected children was not lower than that of children not infected with hookworm, suggesting that nutritional factors are more important than parasite infection per se. Nevertheless, the above results indicate that a nationwide parasite control project is necessary to reduce possible morbidity due to parasitic diseases in the country.",
author = "Rim, {Han Jong} and Chai, {Jong Yil} and Min, {Duk Young} and Cho, {Seung Yull} and Eom, {Keeseon S.} and Hong, {Sung Jong} and Sohn, {Woon Mok} and Yong, {Tai Soon} and Giovanni Deodato and Hanne Standgaard and Bounlay Phommasack and Yun, {Cheong Ha} and Hoang, {Eui Hyug}",
year = "2003",
month = "10",
day = "1",
doi = "10.1007/s00436-003-0963-x",
language = "English",
volume = "91",
pages = "267--272",
journal = "Parasitology Research",
issn = "0932-0113",
publisher = "Springer Verlag",
number = "4",

}

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 2003, 'Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos', Parasitology Research, vol. 91, no. 4, pp. 267-272. https://doi.org/10.1007/s00436-003-0963-x

Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos. / Rim, Han Jong; Chai, Jong Yil; Min, Duk Young; Cho, Seung Yull; Eom, Keeseon S.; Hong, Sung Jong; Sohn, Woon Mok; Yong, Tai Soon; Deodato, Giovanni; Standgaard, Hanne; Phommasack, Bounlay; Yun, Cheong Ha; Hoang, Eui Hyug.

In: Parasitology Research, Vol. 91, No. 4, 01.10.2003, p. 267-272.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Prevalence of intestinal parasite infections on a national scale among primary schoolchildren in Laos

AU - Rim, Han Jong

AU - Chai, Jong Yil

AU - Min, Duk Young

AU - Cho, Seung Yull

AU - Eom, Keeseon S.

AU - Hong, Sung Jong

AU - Sohn, Woon Mok

AU - Yong, Tai Soon

AU - Deodato, Giovanni

AU - Standgaard, Hanne

AU - Phommasack, Bounlay

AU - Yun, Cheong Ha

AU - Hoang, Eui Hyug

PY - 2003/10/1

Y1 - 2003/10/1

N2 - In order to investigate the epidemiological situation of intestinal parasite infections in Laos, parasitological surveys were carried out on a national scale including 17 provinces and the Vientiane Municipality. A total of 29,846 stool specimens were collected from primary schoolchildren from May 2000 to June 2002 and examined once with the cellophane thick smear technique. The cumulative egg positive rate for intes-tinal helminths was 61.9%. By species, the rate for Ascaris lumbricoides was 34.9%, hookworm 19.1%, Trichuris trichiura 25.8%, Opisthorchis viverrini 10.9%, Taenia spp. 0.6% and Hymenolepis spp. 0.2%. The northern mountainous regions such as Phongsaly, Huaphan or Saysomboune Province showed a higher prevalence (over 70%) of soil- transmitted helminths. The regions along the Mekong River such as Khammuane, Saravane or Savannakhet Province showed a higher prevalence (over 20%) of fish-borne parasites. On the other hand, Schistosoma mansoni eggs were detected in 1.7% of schoolchildren only in Champassak Province, a previously endemic area. The highest prevalence was noted in Phongsaly Province (96.0%) and the lowest in Bolikhamxay Province (27.5%). An additional small-scale survey by cellophane anal swab detected Enterobius vermicularis eggs in 35.7% of 451 schoolchildren aged 6-8 years in Khammuane, Vientiane, Champassak Province and the Vientiane Municipality. Meanwhile, the mean blood haemoglobin level of hookworm-infected children was not lower than that of children not infected with hookworm, suggesting that nutritional factors are more important than parasite infection per se. Nevertheless, the above results indicate that a nationwide parasite control project is necessary to reduce possible morbidity due to parasitic diseases in the country.

AB - In order to investigate the epidemiological situation of intestinal parasite infections in Laos, parasitological surveys were carried out on a national scale including 17 provinces and the Vientiane Municipality. A total of 29,846 stool specimens were collected from primary schoolchildren from May 2000 to June 2002 and examined once with the cellophane thick smear technique. The cumulative egg positive rate for intes-tinal helminths was 61.9%. By species, the rate for Ascaris lumbricoides was 34.9%, hookworm 19.1%, Trichuris trichiura 25.8%, Opisthorchis viverrini 10.9%, Taenia spp. 0.6% and Hymenolepis spp. 0.2%. The northern mountainous regions such as Phongsaly, Huaphan or Saysomboune Province showed a higher prevalence (over 70%) of soil- transmitted helminths. The regions along the Mekong River such as Khammuane, Saravane or Savannakhet Province showed a higher prevalence (over 20%) of fish-borne parasites. On the other hand, Schistosoma mansoni eggs were detected in 1.7% of schoolchildren only in Champassak Province, a previously endemic area. The highest prevalence was noted in Phongsaly Province (96.0%) and the lowest in Bolikhamxay Province (27.5%). An additional small-scale survey by cellophane anal swab detected Enterobius vermicularis eggs in 35.7% of 451 schoolchildren aged 6-8 years in Khammuane, Vientiane, Champassak Province and the Vientiane Municipality. Meanwhile, the mean blood haemoglobin level of hookworm-infected children was not lower than that of children not infected with hookworm, suggesting that nutritional factors are more important than parasite infection per se. Nevertheless, the above results indicate that a nationwide parasite control project is necessary to reduce possible morbidity due to parasitic diseases in the country.

UR - http://www.scopus.com/inward/record.url?scp=0242297838&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0242297838&partnerID=8YFLogxK

U2 - 10.1007/s00436-003-0963-x

DO - 10.1007/s00436-003-0963-x

M3 - Article

C2 - 14574555

AN - SCOPUS:0242297838

VL - 91

SP - 267

EP - 272

JO - Parasitology Research

JF - Parasitology Research

SN - 0932-0113

IS - 4

ER -