Une \u00e9tude sur l\u2019efficacit\u00e9 de chaque vaccin contre les mutations du coronavirus a \u00e9t\u00e9 demand\u00e9 par l\u2019Agence europ\u00e9enne du m\u00e9dicament (EMA) \u00e0 toutes les entreprises qui en ont d\u00e9velopp\u00e9. Le but est de pouvoir diffuser une \u00abligne directrice\u00bb aux fabricants, pour s\u2019assurer que les futurs rem\u00e8des fonctionnent tous.<\/p>\n\n\n\n
Il se peut en effet que des changements doivent \u00eatre effectu\u00e9s dans l\u2019\u00e9laboration des doses pour faire face aux nouveaux variants du Covid-19. Ceux-ci, \u00e0 l\u2019instar du \u00abbritannique\u00bb, \u00absud-africain\u00bb ou \u00abbr\u00e9silien\u00bb, posent probl\u00e8me par leur plus grande contagiosit\u00e9 et font craindre d\u2019\u00eatre capables d\u2019\u00e9chapper aux r\u00e9ponses immunitaires que doit apporter un vaccin ou une pr\u00e9c\u00e9dente infection.<\/p>\n\n\n\n
Pfizer-BioNtech et Moderna ont d\u2019ores et d\u00e9j\u00e0 affirm\u00e9 que leurs m\u00e9dicaments restent efficaces contre les variants britanniques et sud-africains. Des doutes existent concernant celui d\u2019AstraZeneca-Oxford face au sud-africain, m\u00eame si l\u2019OMS a recommand\u00e9 hier son utilisation m\u00eame dans les pays o\u00f9 les mutations circulent.<\/p>\n\n\n\n
C\u2019est pourquoi l\u2019EMA a demand\u00e9 aux fabricants de \u00abfournir des donn\u00e9es pertinentes\u00bb sur l\u2019efficacit\u00e9 de leurs vaccins, afin de les centraliser et partager cette \u00abligne directrice\u00bb.<\/p>\n\n\n\n
Une mutation pr\u00e9sente sur le variant sud-africain, baptis\u00e9e E484K, pose question sur l’efficacit\u00e9 des vaccins.<\/p>\n\n\n\n
L\u2019agence tient cependant \u00e0 ne pas se montrer trop inqui\u00e8te, en pr\u00e9cisant que si des variants peuvent r\u00e9sister \u00e0 certaines actions des traitements, \u00abune r\u00e9duction de la protection contre les formes l\u00e9g\u00e8res de la maladie (…) ne se traduit pas n\u00e9cessairement par une r\u00e9duction de la protection contre les formes graves\u00bb.<\/p>\n","protected":false},"excerpt":{"rendered":"
Une \u00e9tude sur l\u2019efficacit\u00e9 de chaque vaccin contre les mutations du coronavirus a \u00e9t\u00e9 demand\u00e9 par l\u2019Agence europ\u00e9enne du m\u00e9dicament (EMA) \u00e0 toutes les entreprises qui en ont d\u00e9velopp\u00e9. Le but est de pouvoir diffuser une \u00abligne directrice\u00bb aux fabricants, pour s\u2019assurer que les futurs rem\u00e8des fonctionnent tous. Il se peut en effet que des […]<\/p>\n","protected":false},"author":4,"featured_media":25760,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","jnews-multi-image_gallery":[],"jnews_single_post":{"subtitle":"","format":"standard","video":"","gallery":"","source_name":"","source_url":"","via_name":"","via_url":"","override":[{"single_blog_custom":"","sidebar":"","second_sidebar":"","share_position":"","share_float_style":"","post_date_format":"","post_date_format_custom":"","post_reading_time_wpm":"","zoom_button_out_step":"1","zoom_button_in_step":"1","number_popup_post":"1"}],"image_override":[{"single_post_thumbnail_size":"","single_post_gallery_size":""}],"trending_post_position":"","trending_post_label":"","sponsored_post_label":"","sponsored_post_name":"","sponsored_post_url":"","sponsored_post_logo":"","sponsored_post_desc":""},"jnews_primary_category":{"id":""},"jnews_override_bookmark_settings":[],"jnews_review":[],"enable_review":"","type":"","name":"","summary":"","brand":"","sku":"","good":[],"bad":[],"score_override":"","override_value":"","rating":[],"price":[],"jnews_post_split":[],"footnotes":""},"categories":[11],"tags":[4166,6829,3929,7082,7083,2815],"class_list":["post-26596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health","tag-coronavirus","tag-efficacite","tag-etude","tag-lagence-europeenne-du-medicament-2","tag-mutations","tag-vaccin"],"_links":{"self":[{"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/posts\/26596","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26596"}],"version-history":[{"count":1,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/posts\/26596\/revisions"}],"predecessor-version":[{"id":26597,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/posts\/26596\/revisions\/26597"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=\/wp\/v2\/media\/25760"}],"wp:attachment":[{"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.africanchallenges.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}