{"id":3549,"date":"2019-12-04T13:52:23","date_gmt":"2019-12-04T13:52:23","guid":{"rendered":"http:\/\/edren.org\/ren\/education\/textbook\/schistosomiasis\/"},"modified":"2020-08-12T11:38:13","modified_gmt":"2020-08-12T11:38:13","slug":"schistosomiasis","status":"publish","type":"page","link":"https:\/\/edren.org\/ren\/education\/textbook\/conditions-that-affect-the-kidney\/schistosomiasis\/","title":{"rendered":"Schistosomiasis"},"content":{"rendered":"<p>Schistosomiasis, or bilharzia, is a parasitic disease caused by trematode flatworms of the genus Schistosoma. Larval forms of the parasites, which are released by freshwater snails, penetrate the skin of people in the water. S. haematobium causes urinary disease and is mainly found in Africa and to lesser extent in the Middle East. S. mansoni is found in Africa, South America and the Caribbean, and S.japonicum in the Far East.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/Schistosomiasis_world_map.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3672\" src=\"http:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/Schistosomiasis_world_map.png\" alt=\"\" width=\"500\" height=\"221\" srcset=\"https:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/Schistosomiasis_world_map.png 500w, https:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/Schistosomiasis_world_map-300x133.png 300w, https:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/Schistosomiasis_world_map-150x66.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 12pt;\">Disability caused by Schistosomiasis (<a href=\"http:\/\/commons.wikimedia.org\/wiki\/File:Schistosomiasis_world_map_-_DALY_-_WHO2002.svg\">image<\/a> from Wikimedia Commons)<\/span><\/p>\n<p>In the body, the larvae develop into adult schistosomes, which live in the blood vessels. The females release eggs, some of which are passed out of the body in the urine or faeces. Others are trapped in body tissues, causing an immune reaction. &#8216;Katayama fever&#8217; can occur some weeks after primary infection, but predominantly the disease is chronic. \u00a0It is also known as bilharzia.<\/p>\n<p>In <strong><span style=\"color: #993300;\">urinary schistosomiasis\u00a0<\/span><\/strong>(S. haematobium)\u00a0there is progressive damage to the bladder, ureters and kidneys.<\/p>\n<p>In <strong><span style=\"color: #993300;\">intestinal schistosomiasis<\/span><\/strong>\u00a0there is intestinal damage, progressive enlargement of the liver and spleen, and portal hypertension leading to oesophageal varices.<\/p>\n<p>Control of schistosomiasis is based on drug treatment, snail control, improved sanitation and health education.<\/p>\n<hr \/>\n<h3><strong><span style=\"color: #993300;\">Further info<\/span><\/strong><\/h3>\n<p>The Edinburgh-Malawi &#8216;Labyrinth&#8217; case on Urinary Schistosomiasis <a href=\"http:\/\/malawi.mvm.ed.ac.uk\/labyrinth\/malawi\/mnode_client.php?id=30997\">A 12 year old boy with haematuria<\/a> is excellent and tells all you need to know about clinical and some public health aspects. \u00a0Doesn&#8217;t cover life cycle or pathophysiology. \u00a0It was written by Anthony Butterworth.<\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 12pt;\"><a href=\"http:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/schistosomiasis_riverkids_small.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3674 aligncenter\" src=\"http:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/schistosomiasis_riverkids_small.jpeg\" alt=\"\" width=\"400\" height=\"270\" srcset=\"https:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/schistosomiasis_riverkids_small.jpeg 400w, https:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/schistosomiasis_riverkids_small-300x203.jpeg 300w, https:\/\/edren.org\/ren\/wp-content\/uploads\/2019\/12\/schistosomiasis_riverkids_small-150x101.jpeg 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a>A transmission site: \u00a0Lake Albert, Uganda (Anthony Butterworth)<\/span><\/p>\n<p>The <a href=\"http:\/\/www.cdc.gov\/dpdx\/schistosomiasis\/index.html\">CDC page on Schistosomiasis life cycle<\/a> is excellent and you can also find parasite images there, and much more info linked from the <a href=\"http:\/\/www.cdc.gov\/parasites\/schistosomiasis\/index.html\"> CDC Schistosomiasis page<\/a>. \u00a0There is\u00a0a particularly high quality, single page of detailed <a href=\"http:\/\/www.cdc.gov\/parasites\/schistosomiasis\/health_professionals\/index.html\">professional info<\/a>.<\/p>\n<p><a href=\"http:\/\/en.wikipedia.org\/wiki\/Schistosomiasis\">Wikipedia on Schistosomiasis<\/a> is pretty good.<\/p>\n<p><a href=\"http:\/\/www.medcol.mw\/articulate\/pediatrics\/SchistosomiasisandUTIfinalyear\/player.html\">Online lecture from Dr Neil Kennedy<\/a>, Malawi (45 mins) is good.<\/p>\n<p style=\"text-align: left;\"><span style=\"font-size: 12pt;\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Schistosomiasis, or bilharzia, is a parasitic disease caused by trematode flatworms of the genus Schistosoma. Larval forms of the parasites, which are released by freshwater snails, penetrate the skin of people in the water. S. haematobium causes urinary disease and is mainly found in Africa and to lesser extent in\u2026<\/p>\n<p> <a class=\"continue-reading-link\" href=\"https:\/\/edren.org\/ren\/education\/textbook\/conditions-that-affect-the-kidney\/schistosomiasis\/\"><span>Continue reading<\/span><i class=\"crycon-right-dir\"><\/i><\/a> <\/p>\n","protected":false},"author":2,"featured_media":0,"parent":3723,"menu_order":117,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"class_list":["post-3549","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/pages\/3549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/comments?post=3549"}],"version-history":[{"count":4,"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/pages\/3549\/revisions"}],"predecessor-version":[{"id":5023,"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/pages\/3549\/revisions\/5023"}],"up":[{"embeddable":true,"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/pages\/3723"}],"wp:attachment":[{"href":"https:\/\/edren.org\/ren\/wp-json\/wp\/v2\/media?parent=3549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}