{"id":218240,"date":"2021-09-01T14:44:19","date_gmt":"2021-09-01T13:44:19","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=218240"},"modified":"2021-09-01T14:44:19","modified_gmt":"2021-09-01T13:44:19","slug":"covid-19-loms-surveille-un-nouveau-variant-baptise-mu","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/covid-19-loms-surveille-un-nouveau-variant-baptise-mu\/","title":{"rendered":"Covid-19 : l&rsquo;OMS surveille un nouveau variant, baptis\u00e9 \u00ab\u00a0Mu\u00a0\u00bb"},"content":{"rendered":"<div>L\u2019Organisation mondiale de la sant\u00e9 (OMS) surveille un nouveau variant du coronavirus, baptis\u00e9 \u00ab\u00a0Mu\u00a0\u00bb, qui a \u00e9t\u00e9 identifi\u00e9 pour la premi\u00e8re fois en Colombie en janvier. Le variant \u2013 B.1.621 d\u2019apr\u00e8s la nomenclature scientifique \u2013 a pour l\u2019instant \u00e9t\u00e9 class\u00e9 comme \u00ab\u00a0variant \u00e0 suivre\u00a0\u00bb, a pr\u00e9cis\u00e9 l\u2019OMS dans son bulletin \u00e9pid\u00e9miologique hebdomadaire sur l\u2019\u00e9volution de la pand\u00e9mie.<\/div>\n<div><\/div>\n<div><strong>*Risque d'\u00a0\u00bb\u00e9chappement immunitaire\u00a0\u00bb<\/strong><\/div>\n<div>L\u2019OMS pr\u00e9cise que le variant pr\u00e9sente des mutations qui pourraient indiquer un risque d\u2019\u00a0\u00bb\u00e9chappement immunitaire\u00a0\u00bb (r\u00e9sistance aux vaccins), et souligne que des \u00e9tudes suppl\u00e9mentaires sont n\u00e9cessaires pour mieux comprendre ses caract\u00e9ristiques.<\/div>\n<div>Tous les virus, y compris le SARS-CoV-2 responsable de la COVID-19, mutent avec le temps. La plupart des mutations n\u2019ont que peu ou pas d\u2019incidence sur les propri\u00e9t\u00e9s du virus.<\/div>\n<div>Cependant, certaines mutations peuvent affecter les propri\u00e9t\u00e9s du virus et influer, par exemple, sur la facilit\u00e9 avec laquelle il se propage, la gravit\u00e9 de la maladie qu\u2019il entra\u00eene ou l\u2019efficacit\u00e9 des vaccins, des m\u00e9dicaments, des outils de diagnostic ou des autres mesures sociales et de sant\u00e9 publique.<\/div>\n<div><\/div>\n<div><strong>*Des variants \u00e0 suivre et pr\u00e9occupants<\/strong><\/div>\n<div>L\u2019apparition, fin 2020, de variants qui pr\u00e9sentaient un risque accru pour la sant\u00e9 publique mondiale a conduit l\u2019OMS \u00e0 caract\u00e9riser des variants \u00e0 suivre et des variants pr\u00e9occupants, afin de hi\u00e9rarchiser les activit\u00e9s de surveillance et de recherche au niveau mondial.<\/div>\n<div>L\u2019OMS a d\u00e9cid\u00e9 de nommer les variants \u00e0 suivre ou pr\u00e9occupants \u00e0 l\u2019aide de lettres de l\u2019alphabet grec, afin d\u2019\u00e9viter toute stigmatisation d\u2019un pays en particulier et de permettre au grand public de prononcer les noms plus facilement.<\/div>\n<div>Actuellement, l\u2019OMS consid\u00e8re que quatre variants sont pr\u00e9occupants, dont les variants Alpha, pr\u00e9sent dans 193 pays, et Delta, pr\u00e9sent dans 170 pays, tandis que cinq autres variants sont \u00e0 suivre (y compris Mu).<\/div>\n<div><\/div>\n<div><strong>*D\u00e9tect\u00e9 en Colombie en janvier<\/strong><\/div>\n<div>Le variant Mu a \u00e9t\u00e9 d\u00e9tect\u00e9 pour la premi\u00e8re fois en Colombie en janvier. Depuis, il a \u00e9t\u00e9 signal\u00e9 dans d\u2019autres pays d\u2019Am\u00e9rique du Sud et en Europe.<\/div>\n<div>\u00ab\u00a0Bien que la pr\u00e9valence mondiale du variant Mu parmi les cas s\u00e9quenc\u00e9s ait diminu\u00e9 et soit actuellement inf\u00e9rieure \u00e0 0,1 %, sa pr\u00e9valence en Colombie (39 %) et en \u00c9quateur (13 %) a constamment augment\u00e9\u00a0\u00bb, a expliqu\u00e9 l\u2019OMS.<\/div>\n<div style=\"text-align: right\">(La D\u00e9p\u00eache, avec AFP)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019Organisation mondiale de la sant\u00e9 (OMS) surveille un nouveau variant du coronavirus, baptis\u00e9 \u00ab\u00a0Mu\u00a0\u00bb, qui a \u00e9t\u00e9 identifi\u00e9 pour la premi\u00e8re fois en Colombie en janvier. Le variant \u2013 B.1.621&hellip;<\/p>\n","protected":false},"author":60,"featured_media":218241,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-218240","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monde"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Covid-19 : l&#039;OMS surveille un nouveau variant, baptis\u00e9 &quot;Mu&quot; - R\u00e9alit\u00e9s Magazine<\/title>\n<meta name=\"description\" content=\"L\u2019Organisation mondiale de la sant\u00e9 (OMS) surveille un nouveau variant du coronavirus, baptis\u00e9 &quot;Mu&quot;, qui a \u00e9t\u00e9 identifi\u00e9 pour la premi\u00e8re fois en Colombie\" \/>\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\/covid-19-loms-surveille-un-nouveau-variant-baptise-mu\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Covid-19 : l&#039;OMS surveille un nouveau variant, baptis\u00e9 &quot;Mu&quot; - 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