{"id":35085,"date":"2025-06-24T00:36:41","date_gmt":"2025-06-24T04:36:41","guid":{"rendered":"https:\/\/joinastudy.ca\/une-nouvelle-etude-demontre-que-le-vaccin-contre-le-vrs-est-efficace-chez-les-adultes-ages-pendant-trois-saisons-consecutives\/"},"modified":"2025-06-24T00:40:08","modified_gmt":"2025-06-24T04:40:08","slug":"une-nouvelle-etude-demontre-que-le-vaccin-contre-le-vrs-est-efficace-chez-les-adultes-ages-pendant-trois-saisons-consecutives","status":"publish","type":"post","link":"https:\/\/joinastudy.ca\/fr\/une-nouvelle-etude-demontre-que-le-vaccin-contre-le-vrs-est-efficace-chez-les-adultes-ages-pendant-trois-saisons-consecutives\/","title":{"rendered":"Une nouvelle \u00e9tude d\u00e9montre que le vaccin contre le VRS est efficace chez les adultes \u00e2g\u00e9s pendant trois saisons cons\u00e9cutives"},"content":{"rendered":"<p data-start=\"0\" data-end=\"302\"><strong data-start=\"0\" data-end=\"302\">Une \u00e9tude internationale r\u00e9cente a r\u00e9v\u00e9l\u00e9 qu\u2019une seule dose d\u2019un nouveau vaccin contre le virus respiratoire syncytial (VRS), appel\u00e9 RSVPreF3 OA, peut prot\u00e9ger les adultes \u00e2g\u00e9s de 60 ans et plus contre les infections pulmonaires graves caus\u00e9es par le VRS pendant jusqu\u2019\u00e0 trois saisons cons\u00e9cutives.<\/strong><\/p>\n<p data-start=\"304\" data-end=\"765\">L\u2019\u00e9tude a port\u00e9 sur plus de 24\u202f000 adultes \u00e2g\u00e9s r\u00e9partis dans 17\u202fpays et a compar\u00e9 l\u2019efficacit\u00e9 du vaccin \u00e0 celle d\u2019un placebo (une substance inoffensive et inactive). Les r\u00e9sultats ont montr\u00e9 qu\u2019une seule dose du vaccin r\u00e9duisait le risque de maladie des voies respiratoires inf\u00e9rieures li\u00e9e au VRS (RSV-LRTD) d\u2019environ 63\u202f% sur trois saisons de VRS. Le vaccin a \u00e9galement montr\u00e9 une bonne efficacit\u00e9 contre les deux principaux types du virus \u2014 VRS A et VRS B.<\/p>\n<p data-start=\"767\" data-end=\"1169\">JoinAStudy.ca tient \u00e0 f\u00e9liciter les chercheurs principaux, le <a href=\"https:\/\/joinastudy.ca\/study-locations\/london-east-medical-centre-dr-dzongowski\/\">Dr\u202fPeter Dzongowski<\/a>, le <a href=\"https:\/\/joinastudy.ca\/study-locations\/cook-street-medical-clinic-dr-jones\/\">Dr\u202fMichael Jones<\/a> et le <a href=\"https:\/\/joinastudy.ca\/study-locations\/bluewater-clinical-research-group\/\">Dr\u202fSean Peterson<\/a>, dont les efforts ont \u00e9t\u00e9 essentiels pour recueillir les donn\u00e9es ayant permis ces conclusions. Les participants \u00e0 l\u2019\u00e9tude ainsi que les \u00e9quipes de coordination sur leurs sites de recherche m\u00e9ritent \u00e9galement d\u2019\u00eatre remerci\u00e9s pour le temps et l\u2019engagement qu\u2019ils ont consacr\u00e9s.<\/p>\n<p data-start=\"1171\" data-end=\"1410\">Le vaccin est demeur\u00e9 efficace chez les personnes \u00e2g\u00e9es de 60 \u00e0 79 ans, y compris celles pr\u00e9sentant des probl\u00e8mes de sant\u00e9 augmentant leur risque de maladie grave li\u00e9e au VRS. Toutefois, la protection a diminu\u00e9 graduellement avec le temps.<\/p>\n<p data-start=\"1412\" data-end=\"1772\">Certains participants ont re\u00e7u une deuxi\u00e8me dose de vaccin un an plus tard, mais leur niveau de protection est rest\u00e9 similaire \u00e0 celui des personnes ayant re\u00e7u une seule dose. Cela laisse entendre qu\u2019une seule dose pourrait suffire pour la plupart des gens, bien que les chercheurs recommandent d\u2019autres \u00e9tudes pour \u00e9tablir la meilleure strat\u00e9gie \u00e0 long terme.<\/p>\n<p data-start=\"1774\" data-end=\"2066\">En ce qui concerne la s\u00e9curit\u00e9, tr\u00e8s peu de participants ont pr\u00e9sent\u00e9 des effets secondaires graves, et ceux-ci \u00e9taient r\u00e9partis \u00e9quitablement entre les groupes vaccin et placebo. Cinq d\u00e9c\u00e8s ont \u00e9t\u00e9 possiblement li\u00e9s \u00e0 l\u2019essai \u2014 trois dans les groupes vaccin\u00e9s et deux dans le groupe placebo.<\/p>\n<p data-start=\"2068\" data-end=\"2248\">Dans l\u2019ensemble, ce vaccin repr\u00e9sente une nouvelle option prometteuse pour prot\u00e9ger les adultes \u00e2g\u00e9s contre le VRS, un virus courant pouvant causer de graves probl\u00e8mes pulmonaires.<\/p>\n<p data-start=\"2250\" data-end=\"2323\" data-is-last-node=\"\" data-is-only-node=\"\"><strong data-start=\"2250\" data-end=\"2323\" data-is-last-node=\"\">Vous pouvez consulter l\u2019article complet publi\u00e9 dans <em data-start=\"2304\" data-end=\"2316\">The Lancet<\/em> <a href=\"https:\/\/www.thelancet.com\/journals\/lanres\/article\/PIIS2213-2600(25)00048-7\/abstract\">ici.<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une \u00e9tude internationale r\u00e9cente a r\u00e9v\u00e9l\u00e9 qu\u2019une seule dose d\u2019un nouveau vaccin contre le virus respiratoire syncytial (VRS), appel\u00e9 RSVPreF3 OA, peut prot\u00e9ger les adultes \u00e2g\u00e9s de 60 ans et plus contre les infections pulmonaires graves caus\u00e9es par le VRS pendant jusqu\u2019\u00e0 trois saisons cons\u00e9cutives. L\u2019\u00e9tude a port\u00e9 sur plus de 24\u202f000 adultes \u00e2g\u00e9s r\u00e9partis<\/p>\n","protected":false},"author":964,"featured_media":34654,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[772,773,776,778],"tags":[],"class_list":["post-35085","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante-et-bien-etre","category-developpement-de-medicaments","category-resultats-detude","category-virus-respiratoire-syncytial-vrs","category-772","category-773","category-776","category-778","description-off"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Une nouvelle \u00e9tude d\u00e9montre que le vaccin contre le VRS est efficace chez les adultes \u00e2g\u00e9s<\/title>\n<meta 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