Korean J Parasitol.  2019 Apr;57(2):135-144. 10.3347/kjp.2019.57.2.135.

Epidemiological Survey on Schistosomiasis and Intestinal Helminthiasis among Village Residents of the Rural River Basin Area in White Nile State, Sudan

Affiliations
  • 1Department of Infection Biology and Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Korea. yhalee@cnu.ac.kr
  • 2Korea Association of Health Promotion, Seoul 076535, Korea.
  • 3Clinical Trial Center, Chungnam National University Hospital, Daejeon 35015, Korea.
  • 4Schistosomiasis Control Program, Ministry of Health, White Nile State, Sudan.
  • 5Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 03080, Korea. hst@snu.ac.kr

Abstract

There have been some reports on schistosomiasis of school children in Sudan's Nile River basin area; however, information about the infection status of Schistosoma species and intestinal helminths among village residents of this area is very limited. Urine and stool samples were collected from the 1,138 residents of the Al Hidaib and Khour Ajwal villages of White Nile State, Sudan in 2014. The prevalence of overall schistosomiasis and intestinal helminthiasis was 36.3% and 7.7%, respectively. Egg positive rates were 35.6% for Schistosoma haematobium, 2.6% for S. mansoni, and 1.4% were mixed. The prevalence of schistosomiasis was significantly higher in men (45.6%) than in women (32.0%), in Khou Ajwal villagers (39.4%) than in Al Hidaib villagers (19.2%), and for age groups ≤15 years old (51.5%) than for age groups >15 years old (13.2%). The average number of eggs per 10 ml urine (EP10) of S. haematobium infections was 18.9, with 22.2 eggs in men vs 17.0 in women and 20.4 in Khou Ajwal villagers vs 8.1 in Al Hidaib villagers. In addition to S. mansoni eggs, 4 different species of intestinal helminths were found in the stool, including Hymenolepis nana (6.6%) and H. diminuta (1.0%). Collectively, urinary schistosomiasis is still prevalent among village residents in Sudan's White Nile River basin and was especially high in men, children ≤15 years, and in the village without a clean water system. H. nana was the most frequently detected intestinal helminths in the 2 villages.

Keyword

Schistosoma haematobium; Schistosoma mansoni; prevalence; intensity of infection; intestinal helminth; Sudan

MeSH Terms

Child
Eggs
Female
Helminthiasis*
Helminths
Humans
Hymenolepis nana
Male
Ovum
Prevalence
Rivers*
Schistosoma
Schistosoma haematobium
Schistosoma mansoni
Schistosomiasis haematobia
Schistosomiasis*
Sudan*
Water
Water
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