{"id":199690,"date":"2020-12-26T23:50:38","date_gmt":"2020-12-26T22:50:38","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=199690"},"modified":"2020-12-26T23:50:38","modified_gmt":"2020-12-26T22:50:38","slug":"coronavirus-linquietant-scenario-noir-des-mutants-dechappement","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/coronavirus-linquietant-scenario-noir-des-mutants-dechappement\/","title":{"rendered":"Coronavirus : l&rsquo;inqui\u00e9tant sc\u00e9nario noir des \u00ab\u00a0mutants d&rsquo;\u00e9chappement\u00a0\u00bb\u00a0"},"content":{"rendered":"<div>Les traitements et les vaccins contre le Sars-CoV-2 peuvent-ils g\u00e9n\u00e9rer des mutations renfor\u00e7ant le Sars-CoV-2 ? Et si oui, quel est le danger ?<\/div>\n<div>Si le coronavirus SARS-CoV-2 mute suffisamment pour \u00e9chapper aux anticorps qui le combattent, il faudra sans doute adapter les vaccins et les traitements. Une course sans fin ?<\/div>\n<div>Depuis le d\u00e9but de l&rsquo;\u00e9pid\u00e9mie, le coronavirus Sars-Cov-2 n&rsquo;a cess\u00e9 de muter. Jusqu&rsquo;\u00e0 maintenant, les nouvelles souches ne pr\u00e9sentaient que quelques mutations qui n&rsquo;ont pas modifi\u00e9 radicalement la composition de son g\u00e9nome, ni ses effets concernant la s\u00e9v\u00e9rit\u00e9 de la maladie ou sa contagiosit\u00e9. Mais depuis quelques jours, des rapports en provenance du Royaume-Uni et d&rsquo;Afrique du Sud font \u00e9tat de deux nouvelles lign\u00e9es pr\u00e9sentant une vingtaine de mutations chacune.<\/div>\n<div>Les donn\u00e9es pr\u00e9liminaires semblent indiquer que ces deux variants seraient plus contagieux, mais aussi que plusieurs de leurs mutations affectent la prot\u00e9ine S (spicule). Cette derni\u00e8re recouvre le coronavirus Sars-CoV-2 sous forme de petites fl\u00e8ches qui agissent comme des clefs permettant d&rsquo;ouvrir les r\u00e9cepteurs (ACE2) des cellules humaines afin de les infecter. Or, la plupart des vaccins d\u00e9velopp\u00e9s \u00e0 ce jour provoquent une r\u00e9ponse du syst\u00e8me immunitaire humain afin qu&rsquo;il produise des anticorps ciblant pr\u00e9cis\u00e9ment la prot\u00e9ine S. Forc\u00e9ment, les scientifiques s&rsquo;interrogent : ces nouvelles mutations sont-elles suffisamment importantes pour permettre au coronavirus de tromper les anticorps et, surtout, comment et pourquoi cette zone-l\u00e0 du coronavirus a-t-elle mut\u00e9 ?<\/div>\n<div style=\"text-align: right\">(L&rsquo;Express)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les traitements et les vaccins contre le Sars-CoV-2 peuvent-ils g\u00e9n\u00e9rer des mutations renfor\u00e7ant le Sars-CoV-2 ? Et si oui, quel est le danger ? Si le coronavirus SARS-CoV-2 mute suffisamment&hellip;<\/p>\n","protected":false},"author":60,"featured_media":199691,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2515],"tags":[],"class_list":["post-199690","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Coronavirus : l&#039;inqui\u00e9tant sc\u00e9nario noir des &quot;mutants d&#039;\u00e9chappement&quot;\u00a0 - R\u00e9alit\u00e9s Magazine<\/title>\n<meta name=\"description\" content=\"Les traitements et les vaccins contre le Sars-CoV-2 peuvent-ils g\u00e9n\u00e9rer des mutations renfor\u00e7ant le Sars-CoV-2 ? Et si oui, quel est le danger ? Si le\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/realites.com.tn\/fr\/coronavirus-linquietant-scenario-noir-des-mutants-dechappement\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Coronavirus : l&#039;inqui\u00e9tant sc\u00e9nario noir des &quot;mutants d&#039;\u00e9chappement&quot;\u00a0 - R\u00e9alit\u00e9s Magazine\" \/>\n<meta property=\"og:description\" content=\"Les traitements et les vaccins contre le Sars-CoV-2 peuvent-ils g\u00e9n\u00e9rer des mutations renfor\u00e7ant le Sars-CoV-2 ? Et si oui, quel est le danger ? 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