{"id":214917,"date":"2021-07-09T13:56:27","date_gmt":"2021-07-09T12:56:27","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=214917"},"modified":"2021-07-09T13:56:27","modified_gmt":"2021-07-09T12:56:27","slug":"une-3e-dose-de-vaccin-anti-covid-de-pfizer-biontech-les-labos-veulent-lautorisation","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/une-3e-dose-de-vaccin-anti-covid-de-pfizer-biontech-les-labos-veulent-lautorisation\/","title":{"rendered":"Une 3e dose de vaccin anti-Covid de Pfizer\/BioNTech? Les labos veulent l&rsquo;autorisation"},"content":{"rendered":"<div>L\u2019alliance Pfizer\/BioNTech pr\u00e9voit de demander \u201cdans les semaines qui viennent\u201d l\u2019autorisation pour une troisi\u00e8me dose de son vaccin contre le Covid-19, aux \u00c9tats-Unis et en Europe notamment, ont annonc\u00e9 jeudi les entreprises dans un communiqu\u00e9.<\/div>\n<div>\u201cPfizer et BioNTech ont constat\u00e9 des r\u00e9sultats encourageants des essais en cours pour une troisi\u00e8me dose du vaccin actuel\u201d, ont-elles expliqu\u00e9. Elles \u201cpr\u00e9voient de soumettre ces donn\u00e9es \u00e0 la FDA, l\u2019EMA et d\u2019autres autorit\u00e9s r\u00e9gulatrices dans les semaines qui viennent\u201d, ont-elles ajout\u00e9 en r\u00e9f\u00e9rence \u00e0 l\u2019Agence am\u00e9ricaine et europ\u00e9enne des m\u00e9dicaments.<\/div>\n<div>Cette dose de rappel vise \u00e0 assurer une protection immunitaire renforc\u00e9e aux personnes d\u00e9j\u00e0 vaccin\u00e9es avec deux premi\u00e8res doses.<\/div>\n<div><\/div>\n<div><strong>*Rappel \u00e0 6 mois<\/strong><\/div>\n<div>\u201cDes donn\u00e9es pr\u00e9liminaires de l\u2019\u00e9tude montrent qu\u2019une dose de rappel administr\u00e9e 6 mois apr\u00e8s la seconde dose a un profil de tol\u00e9rance coh\u00e9rent, tout en suscitant de hauts niveaux d\u2019anticorps neutralisants\u201d contre le virus, y compris contre le variant Beta, apparu en Afrique du Sud.<\/div>\n<div>Ces niveaux sont \u201c5 \u00e0 10 fois sup\u00e9rieurs\u201d \u00e0 ceux observ\u00e9s apr\u00e8s les deux doses initiales. Les r\u00e9sultats de cette \u00e9tude seront publi\u00e9s dans une revue scientifique, ont pr\u00e9cis\u00e9 Pfizer\/BioNTech.<\/div>\n<div>Les deux soci\u00e9t\u00e9s ont \u00e9galement soulign\u00e9 que leur vaccin avait montr\u00e9 de bons r\u00e9sultats en laboratoire contre le variant Delta, et qu\u2019une troisi\u00e8me dose serait donc capable de renforcer l\u2019immunit\u00e9 contre celui-ci \u00e9galement. Des tests sont en cours pour \u201cconfirmer cette hypoth\u00e8se\u201d, ont-elles d\u00e9clar\u00e9.<\/div>\n<div>\u201cM\u00eame si la protection contre les cas graves de la maladie reste haute durant six mois, un d\u00e9clin dans son efficacit\u00e9 contre les cas symptomatiques au cours du temps et de l\u2019\u00e9mergence de variants est attendu\u201d, explique le communiqu\u00e9.<\/div>\n<div>\u201cC\u2019est pourquoi nous avons dit, et nous continuons \u00e0 croire qu\u2019il est probable, en se fondant sur la totalit\u00e9 des donn\u00e9es que nous avons \u00e0 l\u2019heure actuelle, qu\u2019une troisi\u00e8me dose pourrait \u00eatre n\u00e9cessaire entre 6 et 12 mois apr\u00e8s la vaccination\u201d, est-il ajout\u00e9.<\/div>\n<div style=\"text-align: right\">(AFP)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019alliance Pfizer\/BioNTech pr\u00e9voit de demander \u201cdans les semaines qui viennent\u201d l\u2019autorisation pour une troisi\u00e8me dose de son vaccin contre le Covid-19, aux \u00c9tats-Unis et en Europe notamment, ont annonc\u00e9 jeudi&hellip;<\/p>\n","protected":false},"author":60,"featured_media":214914,"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-214917","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>Une 3e dose de vaccin anti-Covid de Pfizer\/BioNTech? 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