Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 7 1 2012 03 15 67 72 EN TB Chu School of Health Care Administration, College of Public Health & Nutrition, Taipei Medical University, Taipei, Taiwan CW Liao Dept. of Parasitology, College of Medicine, Taipei Medical University, Taipei, Taiwan AND Dept. of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan YC Huang Dept. of Parasitology, College of Medicine, Taipei Medical University, Taipei, Taiwan YT Chang Taiwan Medical Mission in São Tomé, Democratic Republic of São Tomé and Príncipe ASRJ Costa Ministry of Health and Social Affairs, Democratic Republic of São Tomé and Príncipe DD Ji Laboratory of Parasitic Diseases, Center for Diseases Control, Dept. of Health, Taipei, Taiwan T Nara Dept. of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan A Tsubouchi Dept. of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan Peter WS Chang School of Public Health, College of Public Health & Nutrition, Taipei Medical University, Taipei, Taiwan WT Chiu Dept. of Neurosurgery, School of Medicine, Taipei Medical University, Taipei, Taiwan CK Fan Dept. of Parasitology, College of Medicine, Taipei Medical University, Taipei, Taiwan AND Center for International Tropical Medicine, Taipei Medical University, Taipei, Taiwan AND Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan 2015 10 03 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. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/222 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/222/221