{"id":93574,"date":"2025-01-10T14:36:43","date_gmt":"2025-01-10T14:36:43","guid":{"rendered":"https:\/\/www.africa-press.net\/cotedivoire\/politique\/ebola-un-simple-contact-avec-la-peau-suffit-a-transmettre-le-virus"},"modified":"2025-01-10T14:36:43","modified_gmt":"2025-01-10T14:36:43","slug":"ebola-un-simple-contact-avec-la-peau-suffit-a-transmettre-le-virus","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/cotedivoire\/toutes-les-actualites\/ebola-un-simple-contact-avec-la-peau-suffit-a-transmettre-le-virus","title":{"rendered":"Ebola : un simple contact avec la peau suffit \u00e0 transmettre le virus"},"content":{"rendered":"

Africa-Press – C\u00f4te d’Ivoire. <\/strong><\/span>Une e\u0301tude, re\u0301alise\u0301e par des chercheurs ame\u0301ricains de l\u2019Universite\u0301 de l\u2019Iowa, du Texas Biomedical Research Institute et de l\u2019Universite\u0301 de Boston (Etats-Unis) et publie\u0301e dans la revue Science Advances, de\u0301peint le parcours du virus Ebola depuis l\u2019inte\u0301rieur du corps jusqu\u2019a\u0300 la surface de la peau. En effet, jusqu\u2019ici, on pensait qu\u2019Ebola, surtout pre\u0301sent dans les pays d\u2019Afrique de l\u2019Ouest, du Centre et de l\u2019Est, se transmettait par les fluides corporelles (salive, sperme, urine…) des malades ou des morts. Cependant, l\u2019e\u0301pide\u0301mie de 2013 a\u0300 2016 en Afrique de l\u2019Ouest a re\u0301ve\u0301le\u0301 que le virus pouvait e\u0301galement se trouver sur la peau des personnes les plus infecte\u0301es.<\/p>\n

Ainsi, les scientifiques ont cherche\u0301 a\u0300 comprendre comment le virus pouvait passer de l\u2019inte\u0301rieur du corps des souffrants a\u0300 la surface de leur e\u0301piderme (les couches superficielles de leur peau). En arrivant sur le corps des malades, l\u2019infection peut alors se transmettre par simple contact cutane\u0301.<\/p>\n

Ebola, un virus mortel<\/b><\/p>\n

Ebola est un virus entrai\u0302nant de fortes fie\u0300vres et des he\u0301morragies. Cette maladie est souvent mortelle pour l\u2019humain. D\u2019apre\u0300s l\u2019Institut Pasteur, son taux de le\u0301talite\u0301 se situe entre 30 et 90% selon les e\u0301pide\u0301mies.<\/p>\n

Il suffit de trois jours au virus pour traverser la peau <\/b><\/p>\n

Pour comprendre la manie\u0300re dont Ebola traverse les diffe\u0301rentes couches de la peau, les scientifiques ont utilise\u0301 un e\u0301chantillon de peau humaine pre\u0301leve\u0301e sur des personnes saines. Les chercheurs ont ensuite introduit le virus en dessous de cet e\u0301chantillon, via les couches dermiques, les plus profondes, afin de reproduire le parcours d\u2019Ebola depuis l\u2019inte\u0301rieur du corps jusqu\u2019a\u0300 l\u2019e\u0301piderme.<\/p>\n

Gra\u0302ce a\u0300 cette me\u0301thode, ils ont pu identifier les macrophages et les cellules endothe\u0301liales, toutes deux utiles au syste\u0300me immunitaire, les fibroblastes, structurant les diffe\u0301rentes couches de peau et les ke\u0301ratinocytes, cellules majoritaires de l\u2019e\u0301piderme, comme des cellules cible\u0301es par Ebola et par lesquelles le virus se de\u0301placent jusqu\u2019a\u0300 la surface du corps des malades.<\/p>\n


\n Cette e\u0301tude permet e\u0301galement d\u2019apprendre que la maladie se de\u0301place de manie\u0300re tre\u0300s rapide a\u0300 travers les diffe\u0301rentes couches de peau. Ainsi, en seulement trois jours, des traces d\u2019Ebola e\u0301taient de\u0301tectables sur l\u2019e\u0301piderme des e\u0301chantillons.<\/p>\n

Des cellules uniques a\u0300 l\u2019e\u0301piderme<\/b><\/p>\n

Certaines de ces cellules identifie\u0301es, pre\u0301sentes dans d\u2019autres organes du corps, e\u0301taient de\u0301ja\u0300 connues en tant que vectrices du virus. Cependant, les ke\u0301ratinocytes, uniquement pre\u0301sentes dans les couches supe\u0301rieures de la peau, sont ici identifie\u0301es pour la premie\u0300re fois comme pouvant l\u2019absorber, expliquent les chercheurs dans un communique\u0301. Cette de\u0301couverte permet une meilleure compre\u0301hension du cheminement d\u2019Ebola a\u0300 travers le corps et donc d\u2019adapter les antiviraux mis au point pour combattre l\u2019infection.<\/p>\n

Enfin, cette utilisation d\u2019e\u0301chantillon de peau humaine se re\u0301ve\u0300le e\u0302tre un moyen peu cou\u0302teux et tre\u0300s efficace pour la recherche, notamment afin de mettre au point de nouveaux traitements contre le virus Ebola.<\/p>\n

Pour plus d’informations et d’analyses sur la C\u00f4te d’Ivoire<\/span>, suivez Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – C\u00f4te d’Ivoire. Une e\u0301tude, re\u0301alise\u0301e par des chercheurs ame\u0301ricains de l\u2019Universite\u0301 de l\u2019Iowa, du Texas Biomedical Research Institute et de l\u2019Universite\u0301 de Boston (Etats-Unis) et publie\u0301e dans la revue Science Advances, de\u0301peint le parcours du virus Ebola depuis l\u2019inte\u0301rieur du corps jusqu\u2019a\u0300 la surface de la peau. En effet, jusqu\u2019ici, on pensait qu\u2019Ebola, […]<\/p>\n","protected":false},"author":82,"featured_media":93573,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[37],"class_list":["post-93574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-cote-divoire-2"],"yoast_head":"\nEbola : un simple contact avec la peau suffit \u00e0 transmettre le virus - C\u00f4te d'Ivoire<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/cotedivoire\/politique\/ebola-un-simple-contact-avec-la-peau-suffit-a-transmettre-le-virus\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ebola : un simple contact avec la peau suffit \u00e0 transmettre le virus\" \/>\n<meta property=\"og:description\" content=\"Africa-Press – C\u00f4te d’Ivoire. Une e\u0301tude, re\u0301alise\u0301e par des chercheurs ame\u0301ricains de l\u2019Universite\u0301 de l\u2019Iowa, du Texas Biomedical Research Institute et de l\u2019Universite\u0301 de Boston (Etats-Unis) et publie\u0301e dans la revue Science Advances, de\u0301peint le parcours du virus Ebola depuis l\u2019inte\u0301rieur du corps jusqu\u2019a\u0300 la surface de la peau. 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