{"id":203483,"date":"2021-02-08T22:56:26","date_gmt":"2021-02-08T21:56:26","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=203483"},"modified":"2021-02-08T22:56:26","modified_gmt":"2021-02-08T21:56:26","slug":"covid-19-loms-examine-le-vaccin-dastrazeneca","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/covid-19-loms-examine-le-vaccin-dastrazeneca\/","title":{"rendered":"Covid-19: l&rsquo;OMS examine le vaccin d&rsquo;AstraZeneca"},"content":{"rendered":"<div>Les experts de l&rsquo;Organisation mondiale de la Sant\u00e9 (OMS) ont examin\u00e9 lundi 8 f\u00e9vrier le vaccin anti-Covid-19 d&rsquo;AstraZeneca et Oxford, au moment o\u00f9 est mise en question son efficacit\u00e9 pour les plus \u00e2g\u00e9s et contre le variant sud-africain du virus, l&rsquo;Afrique du Sud allant m\u00eame jusqu&rsquo;\u00e0 suspendre sa campagne d&rsquo;immunisation. Le vaccin AstraZeneca\/Oxford, que le Royaume-Uni a \u00e9t\u00e9 le premier \u00e0 administrer massivement \u00e0 sa population d\u00e8s d\u00e9cembre, a d\u00e9j\u00e0 \u00e9t\u00e9 approuv\u00e9 par plusieurs autres pays et par l&rsquo;Union europ\u00e9enne. Mais certains gouvernements ont pr\u00e9f\u00e9r\u00e9 le recommander uniquement pour les moins de 65 ans voire 55 ans, faute de donn\u00e9es suffisantes sur son efficacit\u00e9 pour les personnes plus \u00e2g\u00e9es.<\/div>\n<div>Dimanche, l&rsquo;Afrique du Sud a suspendu le d\u00e9marrage de son programme de vaccination contre le Covid-19, qui devait avoir lieu dans les prochains jours avec un million de vaccins Oxford\/AstraZeneca, apr\u00e8s une \u00e9tude r\u00e9v\u00e9lant une efficacit\u00e9 \u00ablimit\u00e9e\u00bb contre le variant local du virus. Selon les premiers r\u00e9sultats de cette \u00e9tude, ce vaccin est efficace \u00e0 seulement 22% contre les formes mod\u00e9r\u00e9es du variant sud-africain. Aucun r\u00e9sultat n&rsquo;est encore disponible sur son efficacit\u00e9 contre les formes graves. \u00abLes premiers r\u00e9sultats semblent confirmer que la mutation du virus d\u00e9tect\u00e9e en Afrique du Sud peut se transmettre \u00e0 la population d\u00e9j\u00e0 vaccin\u00e9e\u00bb, indique un communiqu\u00e9 sur cette \u00e9tude de l&rsquo;universit\u00e9 du Witwatersrand \u00e0 Johannesburg, qui n&rsquo;a pas encore \u00e9t\u00e9 examin\u00e9e par des pairs. \u00abNous pensons que notre vaccin prot\u00e9gera quand m\u00eame contre les formes graves de la maladie\u00bb, a affirm\u00e9 pour sa part un porte-parole d&rsquo;AstraZeneca, contact\u00e9 par l&rsquo;AFP.<\/div>\n<div><\/div>\n<div><strong>*Technologie plus traditionnelle<\/strong><\/div>\n<div>Lundi, le comit\u00e9 strat\u00e9gique des experts en immunisation de l&rsquo;OMS s&rsquo;est r\u00e9uni en visioconf\u00e9rence pour formuler des recommandations provisoires quant \u00e0 l&rsquo;utilisation de ce vaccin. \u00abUne attention particuli\u00e8re sera donn\u00e9e \u00e0 la discussion sur l&rsquo;utilisation du vaccin sur les adultes les plus \u00e2g\u00e9s\u00bb, pr\u00e9cise l&rsquo;agenda de l&rsquo;OMS. Avec une efficacit\u00e9 moyenne pour l&rsquo;heure de 70%, le vaccin d&rsquo;AstraZeneca\/Oxford est moins probant pour l&rsquo;instant que ceux de Pfizer\/BioNTech ou de Moderna, dont l&rsquo;efficacit\u00e9 d\u00e9passe les 90%. Mais ce vaccin utilise une technologie plus traditionnelle que ces deux concurrents, ce qui le rend moins co\u00fbteux, plus facile \u00e0 stocker puisqu&rsquo;il peut \u00eatre conserv\u00e9 dans des r\u00e9frig\u00e9rateurs et non \u00e0 tr\u00e8s basse temp\u00e9rature, et donc plus adapt\u00e9 \u00e0 des campagnes de vaccination massives.<\/div>\n<div>La pand\u00e9mie du nouveau coronavirus a fait au moins 2,31 millions de morts dans le monde depuis que le bureau de l&rsquo;OMS en Chine a fait \u00e9tat de l&rsquo;apparition de la maladie fin d\u00e9cembre 2019, selon un bilan \u00e9tabli par l&rsquo;AFP \u00e0 partir de sources officielles. Plus de 105,7 millions de cas ont \u00e9t\u00e9 diagnostiqu\u00e9s. Certains pays entrevoient toutefois une lueur d&rsquo;espoir.<\/div>\n<div style=\"text-align: right\">(Le Figaro)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les experts de l&rsquo;Organisation mondiale de la Sant\u00e9 (OMS) ont examin\u00e9 lundi 8 f\u00e9vrier le vaccin anti-Covid-19 d&rsquo;AstraZeneca et Oxford, au moment o\u00f9 est mise en question son efficacit\u00e9 pour&hellip;<\/p>\n","protected":false},"author":60,"featured_media":203484,"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-203483","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 examine le vaccin d&#039;AstraZeneca - 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