prevalence of schistosoma intercalatum and s. haematobium infection among primary schoolchildren in capital areas of democratic republic of são tomé and príncipe, west africa

Clicks: 179
ID: 219119
2012
Background: A parasitological survey of Schistosoma haematobium and S. intercalatum infection among primary schoolchildren in capital area of Democratic Republic of São Tomé and Príncipe (DRSTP) was undertaken.Methods: Subjects with positive infection were confirmed by the detection of S. haematobium ova in the urine or S. intercalatum ova in the stool by using centrifugation concentration or merthiolate-iodine-forma­lin concentration method. Totally, 252 urine and stool samples, respectively, were obtained from apparently healthy schoolchildren, of which 121 from boys (9.8 ± 1.4 yr) and 131 from girls (9.7 ± 1.3 yr).Results: None of participating schoolchildren were found having S. haematobium ova in the urinary speci­men. While, among 4 primary schools studied, only schoolchildren from Saint Marçal were detected with S. intercalatum ova in the fecal specimen, making the overall prevalence of S. intercalatum infection among schoolchildren was 2.4% (6/252) and girls had insignificantly higher prevalence (3.1%, 4/131) than that (1.7%, 2/121) in boys (χ2 = 0.5, P = 0.5).Conclusion: Water control and sanitation as well as snails eliminated by molluscicides are urgently needed to reduce S. intercalatum infection in DRSTP inhabitants.
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Authors ;Peter WS Chang;A Tsubouchi;T Nara;DD Ji;ASRJ Costa;YT Chang;YC Huang;CW Liao;TB Chu;WT Chiu;CK Fan
Journal environmental quality management
Year 2012
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