{"id":379407,"date":"2021-02-14T18:17:14","date_gmt":"2021-02-14T15:17:14","guid":{"rendered":"https:\/\/kinsta.unitedwithisrael.org\/?p=379407"},"modified":"2021-02-15T11:33:07","modified_gmt":"2021-02-15T08:33:07","slug":"t-infecteesetude-israelienne-une-seule-dose-du-vaccin-pfizer-se-revele-tres-efficace-pour-les-personnes-precedemment","status":"publish","type":"post","link":"https:\/\/kinsta.unitedwithisrael.org\/fr\/t-infecteesetude-israelienne-une-seule-dose-du-vaccin-pfizer-se-revele-tres-efficace-pour-les-personnes-precedemment\/","title":{"rendered":"Etude isra\u00e9lienne: une seule dose du vaccin Pfizer se r\u00e9v\u00e8le tr\u00e8s efficace pour les personnes pr\u00e9c\u00e9demment infect\u00e9es"},"content":{"rendered":"

Une dose de vaccin COVID-19 provoque une forte r\u00e9ponse immunitaire chez les personnes pr\u00e9c\u00e9demment infect\u00e9es, quelle que soit la dur\u00e9e, selon une \u00e9tude de l’Universit\u00e9 Bar-Ilan et du Ziv Medical Center.<\/em><\/strong><\/p>\n

Avec l’aimable autorisation de l’Universit\u00e9 Bar-Ilan<\/em><\/p>\n

Bien que les donn\u00e9es d’essais cliniques soient encourageantes, les preuves du monde r\u00e9el concernant le vaccin COVID19 restent rares. En particulier, la r\u00e9ponse au vaccin chez les personnes pr\u00e9c\u00e9demment infect\u00e9es par le SRAS-CoV-2 n’est pas encore compl\u00e8tement \u00e9lucid\u00e9e.<\/p>\n

Des chercheurs de l’Universit\u00e9 Bar-Ilan et du Ziv Medical Center rapportent maintenant des preuves pr\u00e9liminaires que les personnes pr\u00e9c\u00e9demment infect\u00e9es par le virus ont r\u00e9pondu tr\u00e8s fortement \u00e0 une dose du vaccin Pfizer, quel que soit le moment o\u00f9 elles ont \u00e9t\u00e9 infect\u00e9es et si elles avaient ou non des anticorps d\u00e9tectables contre le COVID-19 avant de recevoir le vaccin.<\/p>\n

Leur \u00e9tude, publi\u00e9e le 11 f\u00e9vrier 2021 dans la revue Eurosurveillance, a \u00e9t\u00e9 men\u00e9e sur une cohorte de 514 membres du personnel du Ziv Medical Center. Dix-sept d’entre eux ont \u00e9t\u00e9 infect\u00e9s par le COVID-19 \u00e0 tout moment entre un et dix mois avant de recevoir la premi\u00e8re dose du vaccin. Les niveaux d’anticorps de l’ensemble des testeurs ont \u00e9t\u00e9 mesur\u00e9s avant la vaccination et ensuite pour d\u00e9terminer la r\u00e9ponse au vaccin.<\/p>\n

La r\u00e9ponse parmi les personnes pr\u00e9c\u00e9demment infect\u00e9es a \u00e9t\u00e9 si efficace qu’elle ouvre le d\u00e9bat sur la question de savoir si une dose du vaccin peut suffire. \u00abCette d\u00e9couverte peut aider les pays \u00e0 prendre des d\u00e9cisions \u00e9clair\u00e9es concernant la politique vaccinale – par exemple, si les personnes pr\u00e9c\u00e9demment infect\u00e9es doivent \u00eatre vaccin\u00e9es en priorit\u00e9 et, dans l’affirmative, avec combien de doses<\/em>\u00bb, d\u00e9clare le professeur Michael Edelstein, de la facult\u00e9 de m\u00e9decine Azrieli de Bar -Universit\u00e9 d’Ilan, qui a dirig\u00e9 l’\u00e9tude. \u00abCela donne \u00e9galement l’assurance que ne pas avoir d’anticorps d\u00e9tectables apr\u00e8s avoir \u00e9t\u00e9 infect\u00e9 ne signifie pas n\u00e9cessairement que la protection apr\u00e8s l’infection est perdue<\/em>.\u00a0\u00bb<\/p>\n

La recherche a \u00e9galement fourni des preuves que la r\u00e9ponse immunitaire \u00e9tait similaire dans les groupes multiethniques. Le centre m\u00e9dical de Ziv, o\u00f9 l’\u00e9tude a \u00e9t\u00e9 men\u00e9e, est dot\u00e9 d’un personnel compos\u00e9 de juifs, d’arabes et de druzes, entre autres. Les membres de chacun de ces groupes ont r\u00e9pondu de mani\u00e8re tr\u00e8s similaire \u00e0 la premi\u00e8re dose du vaccin, une d\u00e9couverte bienvenue \u00e9tant donn\u00e9 que le virus lui-m\u00eame est connu pour affecter certains groupes plus que d’autres.<\/p>\n

La forte r\u00e9ponse \u00e0 une dose du vaccin parmi les personnes pr\u00e9c\u00e9demment infect\u00e9es quelle que soit la dur\u00e9e entre l’infection et la vaccination est une bonne nouvelle. Cependant, les chercheurs soulignent que leurs r\u00e9sultats devraient \u00eatre confirm\u00e9s sur un panel plus large avant de parvenir \u00e0 des conclusions d\u00e9finitives.<\/p>\n

Les chercheurs continuent de suivre les agents de sant\u00e9 apr\u00e8s leur deuxi\u00e8me dose pour mieux comprendre combien de temps le vaccin prot\u00e9gera contre le COVID-19 sur diff\u00e9rents groupes de personnes.<\/p>\n

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Une dose de vaccin COVID-19 provoque une forte r\u00e9ponse immunitaire chez les personnes pr\u00e9c\u00e9demment infect\u00e9es, quelle que soit la dur\u00e9e, selon une \u00e9tude de l’Universit\u00e9 Bar-Ilan et du Ziv Medical Center. Avec l’aimable autorisation de l’Universit\u00e9 Bar-Ilan Bien que les donn\u00e9es d’essais cliniques soient encourageantes, les preuves du monde r\u00e9el concernant le vaccin COVID19 restent… Read more »<\/a><\/p>\n","protected":false},"author":4242,"featured_media":374203,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[28414],"tags":[37426,37424,28978,29798,40014,29313,29783,29952],"class_list":["post-379407","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-influence-israelienne","tag-coronavirus-fr","tag-epidemie","tag-etude","tag-medecine","tag-pfizer-fr","tag-recherche","tag-sante","tag-vaccin"],"better_featured_image":{"id":374203,"alt_text":"","caption":"Shutterstock","description":"","media_type":"image","media_details":{"width":2560,"height":1347,"file":"2020\/12\/shutterstock_1874651719-scaled.jpg","sizes":{"medium":{"file":"shutterstock_1874651719-300x158.jpg","width":300,"height":158,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-300x158.jpg"},"large":{"file":"shutterstock_1874651719-1024x539.jpg","width":1024,"height":539,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-1024x539.jpg"},"thumbnail":{"file":"shutterstock_1874651719-150x150.jpg","width":150,"height":150,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-150x150.jpg"},"medium_large":{"file":"shutterstock_1874651719-768x404.jpg","width":768,"height":404,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-768x404.jpg"},"1536x1536":{"file":"shutterstock_1874651719-1536x808.jpg","width":1536,"height":808,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-1536x808.jpg"},"2048x2048":{"file":"shutterstock_1874651719-2048x1078.jpg","width":2048,"height":1078,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-2048x1078.jpg"},"uwi-full-width":{"file":"shutterstock_1874651719-780x410.jpg","width":780,"height":410,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-780x410.jpg"},"uwi-featured-carousel":{"file":"shutterstock_1874651719-890x400.jpg","width":890,"height":400,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-890x400.jpg"},"uwi-featured-content":{"file":"shutterstock_1874651719-290x160.jpg","width":290,"height":160,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-290x160.jpg"},"uwi-content-loop":{"file":"shutterstock_1874651719-190x190.jpg","width":190,"height":190,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-190x190.jpg"},"uwi-category_list":{"file":"shutterstock_1874651719-180x100.jpg","width":180,"height":100,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-180x100.jpg"},"uwi-tiny":{"file":"shutterstock_1874651719-40x40.jpg","width":40,"height":40,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-40x40.jpg"},"uwi-email-featured":{"file":"shutterstock_1874651719-250x170.jpg","width":250,"height":170,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-250x170.jpg"},"uwi-email":{"file":"shutterstock_1874651719-200x140.jpg","width":200,"height":140,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-200x140.jpg"},"uwi-iphone":{"file":"shutterstock_1874651719-960x640.jpg","width":960,"height":640,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-960x640.jpg"},"uwi-iphone-x2":{"file":"shutterstock_1874651719-1136x640.jpg","width":1136,"height":640,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-1136x640.jpg"},"uwi-ipad":{"file":"shutterstock_1874651719-1024x768.jpg","width":1024,"height":768,"mime-type":"image\/jpeg","source_url":"https:\/\/kinsta.unitedwithisrael.org\/wp-content\/uploads\/2020\/12\/shutterstock_1874651719-1024x768.jpg"},"uwi-ipad-x2":{"file":"shutterstock_1874651719-2048x1536.jp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