Parasites, Hosts and Diseases

The Korea Society for Parasitology and Tropical Medicine (대한기생충학·열대의학회)
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Prevalence of Intestinal Helminths among Inhabitants of Cambodia (2006-2011)

  • Yong, Tai-Soon (Department of Environmental Medical Biology and Arthropods of Medical Importance Bank, Institute of Tropical Medicine, Yonsei University College of Medicine) ;
  • Chai, Jong-Yil (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine) ;
  • Sohn, Woon-Mok (Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine) ;
  • Eom, Keeseon S. (Department of Parasitology and Medical Research Institute, Chungbuk National University School of Medicine) ;
  • Jeoung, Hoo-Gn (Korea Association of Health Promotion) ;
  • Hoang, Eui-Hyug (Korea Association of Health Promotion) ;
  • Yoon, Cheong-Ha (Korea Association of Health Promotion) ;
  • Jung, Bong-Kwang (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine) ;
  • Lee, Soon-Hyung (Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine) ;
  • Sinuon, Muth (Center for Parasitology, Entomology, and Malaria Control) ;
  • Socheat, Duong (Center for Parasitology, Entomology, and Malaria Control)
  • Received : 2014.07.20
  • Accepted : 2014.10.09
  • Published : 2014.12.31
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Abstract

In order to investigate the status of intestinal helminthic infections in Cambodia, epidemiological surveys were carried out on a national scale, including 19 provinces. A total of 32,201 fecal samples were collected from schoolchildren and adults between 2006 and 2011 and examined once by the Kato-Katz thick smear technique. The overall egg positive rate of intestinal helminths was 26.2%. The prevalence of hookworms was the highest (9.6%), followed by that of Opisthorchis viverrini/minute intestinal flukes (Ov/MIF) (5.7%), Ascaris lumbricoides (4.6%), and Trichuris trichiura (4.1%). Other types of parasites detected were Enterobius vermicularis (1.1%), Taenia spp. (0.4%), and Hymenolepis spp. (0.2%). The northwestern regions such as the Siem Reap, Oddar Meanchey, and Banteay Meanchey Provinces showed higher prevalences (17.4-22.3%) of hookworms than the other localities. The southwestern areas, including Koh Kong and Preah Sihanouk Provinces showed higher prevalences of A. lumbricoides (17.5-19.2%) and T. trichiura (6.1-21.0%). Meanwhile, the central and southern areas, in particular, Takeo and Kampong Cham Provinces, showed high prevalences of Ov/MIF (23.8-24.0%). The results indicate that a considerably high prevalence of intestinal helminths has been revealed in Cambodia, and thus sustained national parasite control projects are necessary to reduce morbidity due to parasitic infections in Cambodia.

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References

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