alexa Impact of Schistosoma haematobium infection on urinary tract pathology, nutritional status and anaemia in school-aged children in two different endemic areas of the Niger River Basin, Mali.


Journal of Bacteriology & Parasitology

Author(s): Sacko M, Magnussen P, Keita AD, Traor MS, Landour A,

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Abstract The aim of the present study was to contribute to define urinary schistosomiasis-related morbidity indicators and to understand the relationship between infection intensity and disease burden among school-aged children in different endemic areas of Mali. A cross sectional study was undertaken in two different endemic settings: Koulikoro district, along the river and Selingué dam area in the Niger River Basin in order to compare and describe morbidity related to Schistosoma haematobium infection. A total of 667 children aged 7-14 were enrolled in the study. Among these, 333 were from Koulikoro district (175 boys and 158 girls) and 334 from Selingué dam area (169 boys and 165 girls). The overall prevalence of S. haematobium in the two areas was 91.5\%; Koulikoro (97.0\%) and Selingué (85.9\%) and this difference was significant after adjusting for age, sex and clustering within villages. Prevalence of heavy infection (≥ 50 eggs per 10 ml of urine), 57.6\% in Koulikoro and 43.8\% in Selingué, did not differ significantly after adjusting for age, sex and clustering within villages. The transmission of Schistosoma mansoni was mainly confined to Selingué dam area (12.5\%) and was nearly absent in Koulikoro district (1.1\%). Blood in urine was the most frequently reported clinical symptom, more common in Koulikoro (76.8\%) than in Selingué (57.6\%). In a multivariable logistic regression model adjusting for sex, age group, egg intensity category and clustering within villages, Selingué had higher prevalence of macro-haematuria, urinary tract pathology, upper urinary tract pathology and total pathology than Koulikoro, while micro-haematuria did not differ between the two areas. Morbidity measures increased to some extent with egg intensity category, especially micro-haematuria. The results obtained from this study are of importance for planning intervention as for monitoring and evaluation of control in different endemic settings in Mali. Copyright © 2010 Elsevier B.V. All rights reserved. This article was published in Acta Trop and referenced in Journal of Bacteriology & Parasitology

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