{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T10:24:52Z","timestamp":1792923892646,"version":"4.5.0"},"reference-count":36,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2004,10,7]],"date-time":"2004-10-07T00:00:00Z","timestamp":1097107200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Infect Dis"],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                        <jats:title>Background<\/jats:title>\n                        <jats:p>Schistosomiasis is one of the major health problems in tropical and sub-tropical countries, with school age children usually being the most affected group. In 1998 the Department of Health of the province of KwaZulu-Natal established a pilot programme for helminth control that aimed at regularly treating primary school children for schistosome and intestinal helminth infections. This article describes the baseline situation and the impact of treatment on <jats:italic>S. haematobium<\/jats:italic> infection in a cohort of schoolchildren attending grade 3 in a rural part of the province.<\/jats:p>\n                     <\/jats:sec><jats:sec>\n                        <jats:title>Methods<\/jats:title>\n                        <jats:p>Primary schoolchildren from Maputaland in northern KwaZulu-Natal were examined for <jats:italic>Schistosoma haematobium<\/jats:italic> infection, treated with praziquantel and re-examined four times over one year after treatment in order to assess the impact of treatment and patterns of infection and re-infection.<\/jats:p>\n                     <\/jats:sec><jats:sec>\n                        <jats:title>Results<\/jats:title>\n                        <jats:p>Praziquantel treatment was highly efficacious at three weeks after treatment when judged by egg reduction rate (95.3%) and cure rate of heavy infections (94.1%). The apparent overall cure rate three weeks after treatment (57.9%) was much lower but improved to 80.7% at 41 weeks after treatment. Re-infection with <jats:italic>S. haematobium<\/jats:italic> was low and appeared to be limited to the hot and rainy summer. Analysis of only one urine specimen per child considerably underestimated prevalence when compared to the analysis of two specimens, but both approaches provided similar estimates of the proportion of heavy infections and of average infection intensity in the population.<\/jats:p>\n                     <\/jats:sec><jats:sec>\n                        <jats:title>Conclusion<\/jats:title>\n                        <jats:p>According to WHO guidelines the high prevalence and intensity of <jats:italic>S. haematobium<\/jats:italic> infection necessitate regular treatment of schoolchildren in the area. The seasonal transmission pattern together with the slow pace of re-infection suggest that one treatment per year, applied after the end of summer, is sufficient to keep <jats:italic>S. haematobium<\/jats:italic> infection in the area at low levels.<\/jats:p>\n                     <\/jats:sec>","DOI":"10.1186\/1471-2334-4-40","type":"journal-article","created":{"date-parts":[[2004,10,13]],"date-time":"2004-10-13T06:23:37Z","timestamp":1097648617000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":65,"title":["Patterns of Schistosoma haematobium infection, impact of praziquantel treatment and re-infection after treatment in a cohort of schoolchildren from rural KwaZulu-Natal\/South Africa"],"prefix":"10.1186","volume":"4","author":[{"given":"Elmar","family":"Saathoff","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Annette","family":"Olsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pascal","family":"Magnussen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jane D","family":"Kvalsvig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wilhelm","family":"Becker","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chris C","family":"Appleton","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2004,10,7]]},"reference":[{"key":"125_CR1","first-page":"1","volume-title":"Report of the WHO Informal Consultation on Schistosomiasis Control","author":"WHO","year":"1999","unstructured":"WHO: Report of the WHO Informal Consultation on Schistosomiasis Control. 1999, Geneva, World Health Organization, 1-45."},{"key":"125_CR2","first-page":"37","volume":"10","author":"CHJ Schutte","year":"1995","unstructured":"Schutte CHJ, Fripp PJ, Evans AC: An assessment of the schistosomiasis situation in the Republic of South Africa. 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