{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T23:01:48Z","timestamp":1792364508168,"version":"4.4.0"},"reference-count":52,"publisher":"Public Library of Science (PLoS)","issue":"10","license":[{"start":{"date-parts":[[2021,10,27]],"date-time":"2021-10-27T00:00:00Z","timestamp":1635292800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005872","name":"Bahir Dar University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100005872","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosntds.org"],"crossmark-restriction":false},"short-container-title":["PLoS Negl Trop Dis"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Background<\/jats:title>\n<jats:p>Schistosomiasis is one of the widely distributed neglected tropical diseases. It is a serious public health problem in sub-Saharan Africa. The disease is highly prevalent and widely distributed in Ethiopia due to suitable environmental factors and human activities. The prevalence and infection intensity varied from locality to locality in the country. This study aimed to assess the prevalence and intensity of <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> infection and associated risk factors among schoolchildren around Lake Tana.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methods<\/jats:title>\n<jats:p>A school-based cross-sectional study was conducted among 710 schoolchildren from February to April 2021 in eight selected primary schools around Lake Tana. A questionnaire was used to collect data on socio-demographic information and potential risk factors of <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> infection. After collecting socio-demographic information, students were requested to bring about 2grams of stool specimens for parasitological examination. The collected stool samples were processed using a single Kato-Katz and Ritchie\u2019s concentration techniques. The data were analyzed using SPSS software version 23 and factors with a p-value &lt; 0.05 were considered as statistically significant.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Results<\/jats:title>\n<jats:p>The overall prevalence of <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> was 34.9% (95% CI: 31.4\u201338.7) among schoolchildren in the study area. The eggs per gram (EPG) of stool ranged from 24 to 1659 with arithmetic and geometric mean values of 138.1 EPG and 85.1 EPG, respectively. The majority of <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> infections (61.4%) were classified as low infection intensity. Among the different determinant factors being male (AOR = 1.74; 95%CI = 1.233\u20132.457; P-value = 0.002), bathing habits (AOR = 1.494; 95%CI = 1.013\u20132.199; P-value = 0.043) and students attending at Qunzela primary school (AOR = 10.545; 95%CI = 3.264\u201334.067; P-value = 0.001), Alabo primary school (AOR = 3.386; 95%CI = 1.084\u201310.572; P-value = 0.036) were significantly associated with <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> infection.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Conclusion<\/jats:title>\n<jats:p>This study revealed that more than one-third of schoolchildren were infected by <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> in the study area. The majority of the infections were classified as low infection intensity. Being male, bathing habits and schools in which students attended were independent explanatory factors for <jats:italic>S<\/jats:italic>. <jats:italic>mansoni<\/jats:italic> infection. Therefore, integrated control strategies are needed to improve the health conditions of schoolchildren in the study area.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pntd.0009861","type":"journal-article","created":{"date-parts":[[2021,10,27]],"date-time":"2021-10-27T17:23:49Z","timestamp":1635355429000},"page":"e0009861","update-policy":"https:\/\/doi.org\/10.1371\/journal.pntd.corrections_policy","source":"Crossref","is-referenced-by-count":17,"title":["Prevalence, intensity and associated risk factors of Schistosoma mansoni infections among schoolchildren around Lake Tana, northwestern Ethiopia"],"prefix":"10.1371","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7324-2997","authenticated-orcid":true,"given":"Tamirat","family":"Hailegebriel","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Endalkachew","family":"Nibret","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1469-2189","authenticated-orcid":true,"given":"Abaineh","family":"Munshea","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zena","family":"Ameha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2021,10,27]]},"reference":[{"key":"pntd.0009861.ref001","unstructured":"WHO. 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