{"id":10078,"date":"2026-01-27T15:45:00","date_gmt":"2026-01-27T20:45:00","guid":{"rendered":"https:\/\/stillcoviding.ca\/fr\/?p=10078"},"modified":"2026-01-28T13:34:51","modified_gmt":"2026-01-28T18:34:51","slug":"this-years-pfizer-covid-vaccine-estimated-to-be-57-effective-against-emergency-urgent-care","status":"publish","type":"post","link":"https:\/\/stillcoviding.ca\/fr\/nouvelles\/this-years-pfizer-covid-vaccine-estimated-to-be-57-effective-against-emergency-urgent-care\/","title":{"rendered":"Le vaccin Pfizer contre la COVID-19 de cette ann\u00e9e serait efficace \u00e0 57&nbsp;% contre les visites aux urgences et aux services de soins d\u2019urgence"},"content":{"rendered":"<p>Le vaccin de Pfizer 2025-26 contre la COVID-19\u00a0est environ 57&nbsp;% efficace contre les visites aux services d\u2019urgence\/soins urgents et 54&nbsp;% efficace contre les visites en consultation externe chez les adultes environ 4&nbsp;semaines apr\u00e8s la vaccination, avec une incertitude consid\u00e9rable, selon les <a target=\"_blank\" lang=\"en\" href=\"https:\/\/www.medrxiv.org\/content\/10.64898\/2026.01.22.26344618v1\" rel=\"noreferrer noopener\">estimations pr\u00e9liminaires<\/a> publi\u00e9es sur le serveur de pr\u00e9impression medRxiv.<\/p>\n<p>Une \u00e9quipe comprenant des chercheur\u00b7euses du Providence Veterans Affairs (VA) Healthcare System et de Pfizer a utilis\u00e9 un mod\u00e8le cas-t\u00e9moin n\u00e9gatif pour estimer l\u2019efficacit\u00e9 vaccinale pr\u00e9coce (EV) du vaccin BNT162b2 LP.8.1 de Pfizer contre les visites aux urgences et en consultation externe.<\/p>\n<p>Les participant\u00b7e\u00b7s \u00e9taient des patient\u00b7e\u00b7s du VA qui souffraient d\u2019une infection respiratoire aigu\u00eb et qui ont subi un test de d\u00e9pistage de la COVID-19 entre le 10&nbsp;septembre et le 30&nbsp;novembre 2025.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le vaccin de Pfizer 2025-26 contre la COVID-19\u00a0est environ 57&nbsp;% efficace contre les visites aux services d\u2019urgence\/soins urgents et 54&nbsp;% efficace contre les visites en consultation externe chez les adultes environ 4&nbsp;semaines apr\u00e8s la vaccination, avec une incertitude consid\u00e9rable, selon les <a target=\"_blank\" lang=\"en\" href=\"https:\/\/www.medrxiv.org\/content\/10.64898\/2026.01.22.26344618v1\" rel=\"noreferrer noopener\">estimations pr\u00e9liminaires<\/a> publi\u00e9es sur le serveur de pr\u00e9impression medRxiv.<\/p>\n<p>Une \u00e9quipe comprenant des chercheur\u00b7euses du Providence Veterans Affairs (VA) Healthcare System et de Pfizer a utilis\u00e9 un mod\u00e8le cas-t\u00e9moin n\u00e9gatif pour estimer l\u2019efficacit\u00e9 vaccinale pr\u00e9coce (EV) du vaccin BNT162b2 LP.8.1 de Pfizer contre les visites aux urgences et en consultation externe.<\/p>\n<p>Les participant\u00b7e\u00b7s \u00e9taient des patient\u00b7e\u00b7s du VA qui souffraient d\u2019une infection respiratoire aigu\u00eb et qui ont subi un test de d\u00e9pistage de la COVID-19 entre le 10&nbsp;septembre et le 30&nbsp;novembre 2025.<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/stillcoviding.ca\/fr\/nouvelles\/this-years-pfizer-covid-vaccine-estimated-to-be-57-effective-against-emergency-urgent-care\/\">Lire la suite<span class=\"screen-reader-text\">Le vaccin Pfizer contre la COVID-19 de cette ann\u00e9e serait efficace \u00e0 57&nbsp;% contre les visites aux urgences et aux services de soins d\u2019urgence<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[16,945,254,862,7,12,13],"class_list":["post-10078","post","type-post","status-publish","format-standard","hentry","category-nouvelles","tag-covid-19","tag-efficacite-des-vaccins","tag-pfizer","tag-pfizer-biontech","tag-recherche","tag-sras-cov-2","tag-vaccins","entry"],"_links":{"self":[{"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/posts\/10078","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/comments?post=10078"}],"version-history":[{"count":5,"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/posts\/10078\/revisions"}],"predecessor-version":[{"id":10085,"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/posts\/10078\/revisions\/10085"}],"wp:attachment":[{"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/media?parent=10078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/categories?post=10078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stillcoviding.ca\/fr\/wp-json\/wp\/v2\/tags?post=10078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}