{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T02:54:01Z","timestamp":1790909641520,"version":"4.1.0"},"reference-count":31,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2003,10,9]],"date-time":"2003-10-09T00:00:00Z","timestamp":1065657600000},"content-version":"unspecified","delay-in-days":38,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2003,9]]},"abstract":"<jats:p><jats:italic>Schistosoma haematobium<\/jats:italic> and <jats:italic>S. intercalatum<\/jats:italic> readily hybridize with \neach other producing generations of viable hybrid offspring. Experiments were designed to \ninvestigate the infectivity and viability of the <jats:italic>S. haematobium<\/jats:italic>\u00d7<jats:italic>S. \nintercalatum<\/jats:italic> F<jats:sub>1<\/jats:sub> and F<jats:sub>2<\/jats:sub> hybrid larvae in their two intermediate \nsnail hosts compared with the parental species. Analysis of the data obtained suggested that \nthe <jats:italic>S. haematobium<\/jats:italic> [male  ]\u00d7<jats:italic>S. intercalatum<\/jats:italic> [female] F<jats:sub>1<\/jats:sub> hybrid \nmiracidia were more infective to <jats:italic>Bulinus truncatus<\/jats:italic> than to <jats:italic>B. forskalii<\/jats:italic>, and also \nmore infective to <jats:italic>B. truncatus<\/jats:italic> compared with the parental <jats:italic>S. haematobium<\/jats:italic> miracidia. \nThis hybrid was also observed to have a greater cercarial productivity from both intermediate hosts \nand these cercariae were shown to be more infectious and to have a longer longevity compared with \nthe cercariae of <jats:italic>S. haematobium<\/jats:italic>, <jats:italic>S. intercalatum<\/jats:italic> and the <jats:italic>S. haematobium<\/jats:italic> \n[female]\u00d7<jats:italic>S. intercalatum<\/jats:italic> [male  ] F<jats:sub>1<\/jats:sub> hybrid cercariae. The <jats:italic>S. \nhaematobium<\/jats:italic> [female]\u00d7<jats:italic>S. intercalatum<\/jats:italic> [male  ] F<jats:sub>1<\/jats:sub> hybrid was shown \nnot to be very successful in all stages of the investigations. The results indicate that the \n<jats:italic>S. haematobium<\/jats:italic> [male  ]\u00d7<jats:italic>S. intercalatum<\/jats:italic> [female] F<jats:sub>1<\/jats:sub> hybrid may \nhave many reproductive advantages over the reciprocal hybrid and the parental schistosome species. \nThe significance of the results is discussed in relation to the epidemiological consequences \noccurring in Loum, Cameroon, and other areas where <jats:italic>S. haematobium<\/jats:italic> and <jats:italic>S. \nintercalatum<\/jats:italic> are sympatric and able to hybridize.<\/jats:p>","DOI":"10.1017\/s0031182003003597","type":"journal-article","created":{"date-parts":[[2003,8,19]],"date-time":"2003-08-19T05:25:13Z","timestamp":1061270713000},"page":"231-242","source":"Crossref","is-referenced-by-count":42,"title":["Compatibility of <i>Schistosoma haematobium<\/i>, <i>S. intercalatum<\/i> and their \nhybrids with <i>Bulinus truncatus<\/i> and <i>B. forskalii<\/i>"],"prefix":"10.1017","volume":"127","author":[{"given":"B. L.","family":"WEBSTER","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V. R.","family":"SOUTHGATE","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2003,10,9]]},"reference":[{"key":"S0031182003003597_ref028","unstructured":"WRIGHT, C. A. & SOUTHGATE, V. R. (1976).Hybridization of schistosomes and some of its implications. In Genetic Aspects of Host\u2013Parasite Relationships (ed. Taylor, A. E. R. & Muller, R. ),pp. 55\u201386.Blackwell Scientific, Oxford."},{"key":"S0031182003003597_ref027","doi-asserted-by":"publisher","DOI":"10.1016\/0035-9203(74)90163-1"},{"key":"S0031182003003597_ref026","unstructured":"WIJK VAN, H. B. (1969 b). Schistosoma intercalatum infection in school-children of Loum, Cameroun.Tropical and Geographical Medicine 21, 375\u2013382."},{"key":"S0031182003003597_ref025","unstructured":"WIJK VAN, H. B. (1969 a).Infection with Schistosoma intercalatum in Mungo department, Cameroun.Tropical and Geographical Medicine 21, 362\u2013374."},{"key":"S0031182003003597_ref023","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182099004345"},{"key":"S0031182003003597_ref017","doi-asserted-by":"publisher","DOI":"10.1007\/BF00931841"},{"key":"S0031182003003597_ref007","doi-asserted-by":"crossref","unstructured":"MORAND, S. , SOUTHGATE, V. R. & JOURDANE, J. (2002).A model to explain the replacement of Schistosoma intercalatum bySchistosoma haematobium and the hybrid S. intercalatum\/S. haematobiumin areas of sympatry.Parasitology 124, 401\u2013408.","DOI":"10.1017\/S0031182001001342"},{"key":"S0031182003003597_ref016","doi-asserted-by":"publisher","DOI":"10.1080\/00222938200770391"},{"key":"S0031182003003597_ref020","doi-asserted-by":"publisher","DOI":"10.1016\/0020-7519(93)90139-P"},{"key":"S0031182003003597_ref029","unstructured":"WRIGHT, C. A. & ROSS, G. C. 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Cameroun; Schistosoma haematobium, S. intercalatumand their natural hybrid.Zeitschrift f\u00fcr Parasitenkunde 49, 145\u2013159."},{"key":"S0031182003003597_ref021","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182000066373"}],"container-title":["Parasitology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0031182003003597","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,4,8]],"date-time":"2019-04-08T15:24:29Z","timestamp":1554737069000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0031182003003597\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2003,9]]},"references-count":31,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2003,9]]}},"alternative-id":["S0031182003003597"],"URL":"https:\/\/doi.org\/10.1017\/s0031182003003597","relation":{},"ISSN":["0031-1820","1469-8161"],"issn-type":[{"value":"0031-1820","type":"print"},{"value":"1469-8161","type":"electronic"}],"subject":[],"published":{"date-parts":[[2003,9]]}}}