{"id":227738,"date":"2022-01-14T22:09:55","date_gmt":"2022-01-14T21:09:55","guid":{"rendered":"https:\/\/www.realites.com.tn\/?p=227738"},"modified":"2022-01-14T22:09:55","modified_gmt":"2022-01-14T21:09:55","slug":"le-vaccin-de-novavax-autorise-en-france","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/le-vaccin-de-novavax-autorise-en-france\/","title":{"rendered":"Le vaccin de Novavax autoris\u00e9 en France\u00a0"},"content":{"rendered":"<div>Les premi\u00e8res injections de ce vaccin, qui utilise une technologie classique ne reposant pas sur l\u2019ARN messager, pourraient avoir lieu \u00ab d\u00e9but f\u00e9vrier \u00bb, a d\u00e9clar\u00e9 la semaine derni\u00e8re le minist\u00e8re fran\u00e7ais de la sant\u00e9.<\/div>\n<div>La Haute Autorit\u00e9 de sant\u00e9 (HAS) a autoris\u00e9, vendredi 14 janvier, l\u2019utilisation en France du vaccin de la firme am\u00e9ricaine Novavax contre le coronavirus, \u00e0 la technologie plus classique et diff\u00e9rente des vaccins d\u00e9j\u00e0 largement utilis\u00e9s dans l\u2019Union europ\u00e9enne. Ce vaccin avait \u00e9t\u00e9 approuv\u00e9 le 20 d\u00e9cembre dans l\u2019Union europ\u00e9enne et son utilisation en France \u00e9tait conditionn\u00e9e \u00e0 l\u2019avis de la HAS.<\/div>\n<div>Ce vaccin sera le cinqui\u00e8me \u00e0 \u00eatre disponible en France. M\u00eame si quatre vaccins \u00e9taient jusque-l\u00e0 autoris\u00e9s en France, ceux de Pfizer et Moderna sont, dans les faits, quasi exclusivement utilis\u00e9s. Ils sont bas\u00e9s sur une technologie in\u00e9dite, l\u2019ARN messager (ARNm). Les deux autres, ceux d\u2019AstraZeneca et de Janssen, sont redirig\u00e9s vers les pays pauvres par le programme international Covax.<\/div>\n<div>Charg\u00e9e de d\u00e9finir la politique vaccinale de la France, la HAS estime dans son nouvel avis qu\u2019on doit \u00ab privil\u00e9gier \u00bb les vaccins \u00e0 ARNm pour les premi\u00e8res injections comme pour le rappel, en raison de leur efficacit\u00e9 \u00e9lev\u00e9e. Pour autant, elle juge que Novavax et Janssen \u00ab repr\u00e9sentent une option suppl\u00e9mentaire \u00bb pour les personnes qui \u00ab ne souhaitent ou ne peuvent recevoir \u00bb de vaccins ARNm. Il s\u2019agit des \u00ab personnes r\u00e9ticentes face aux vaccins \u00e0 ARNm \u00bb ou \u00ab celles qui ont connu un \u00e9v\u00e8nement ind\u00e9sirable grave apr\u00e8s une premi\u00e8re injection \u00bb.<\/div>\n<div><\/div>\n<div><strong>*\u00ab Une option suppl\u00e9mentaire \u00bb<\/strong><\/div>\n<div>Dans un contexte de flamb\u00e9e \u00e9pid\u00e9mique due au variant Omicron, il est \u00ab indispensable de compl\u00e9ter la couverture pour la primovaccination et d\u2019acc\u00e9l\u00e9rer la campagne de rappel \u00bb chez ces personnes-l\u00e0, insiste la HAS. Pour les deux premi\u00e8res doses, ces personnes peuvent \u00eatre vaccin\u00e9es soit avec Janssen (deux mois entre les doses) soit avec Novavax (trois semaines entre les doses), \u00e0 condition qu\u2019elles aient 55 ans et plus.<\/div>\n<div>Si elles ont moins de 55 ans, elles peuvent \u00eatre vaccin\u00e9es avec Novavax. S\u2019il est indisponible, Janssen peut \u00ab exceptionnellement \u00bb \u00eatre utilis\u00e9 apr\u00e8s avoir inform\u00e9 la personne que les risques d\u2019effets secondaires sont accrus dans cette classe d\u2019\u00e2ge.<\/div>\n<div>Pour le rappel, la HAS estime que Janssen peut \u00eatre utilis\u00e9 chez les 55 ans et plus, m\u00eame s\u2019ils ont eu deux doses de vaccin \u00e0 ARNm auparavant. En revanche, Novavax ne doit jamais \u00eatre utilis\u00e9 en rappel, faute d\u2019essais cliniques.<\/div>\n<div><\/div>\n<div><strong>*Vaccin \u00ab sous-unitaire \u00bb<\/strong><\/div>\n<div>Les premi\u00e8res injections en France du vaccin de Novavax pourraient avoir lieu \u00ab d\u00e9but f\u00e9vrier \u00bb, a soulign\u00e9 la semaine derni\u00e8re le minist\u00e8re fran\u00e7ais de la sant\u00e9. Toujours selon le minist\u00e8re, la France doit recevoir \u00ab 3,2 millions de doses \u00bb de ce vaccin au premier trimestre, et a pos\u00e9 une option pour \u00ab 3,2 millions de doses suppl\u00e9mentaires \u00bb au deuxi\u00e8me trimestre. Les premi\u00e8res livraisons sont attendues \u00ab fin janvier \u00bb selon le minist\u00e8re, mais \u00ab des signaux indiquent qu\u2019il pourrait y avoir des retards \u00bb.<\/div>\n<div>Vendu sous le nom de Nuvaxovid, ce vaccin fabriqu\u00e9 par le laboratoire am\u00e9ricain Novavax est un vaccin dit \u00ab sous-unitaire \u00bb : il contient une composante du virus (et non le virus entier comme les vaccins les plus classiques), introduite dans l\u2019organisme pour d\u00e9clencher une r\u00e9ponse immunitaire.<\/div>\n<div>C\u2019est sur cette technique que se basent les vaccins contre la coqueluche, la m\u00e9ningite \u00e0 m\u00e9ningocoque et l\u2019h\u00e9patite B. Cela pourrait lever les r\u00e9ticences des personnes qui refusent de se faire vacciner car la technologie de l\u2019ARNm est toute nouvelle. \u00ab Puisse [ce vaccin] \u00eatre un solide encouragement pour les non-vaccin\u00e9s ou ceux qui n\u2019ont pas fait leur rappel ! \u00bb, avait ainsi esp\u00e9r\u00e9 la pr\u00e9sidente de la Commission europ\u00e9enne, Ursula von der Leyen, lors de son approbation dans l\u2019UE.<\/div>\n<div style=\"text-align: right\">(Le Monde avec AFP)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les premi\u00e8res injections de ce vaccin, qui utilise une technologie classique ne reposant pas sur l\u2019ARN messager, pourraient avoir lieu \u00ab d\u00e9but f\u00e9vrier \u00bb, a d\u00e9clar\u00e9 la semaine derni\u00e8re le&hellip;<\/p>\n","protected":false},"author":60,"featured_media":227739,"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-227738","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 - 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