{"id":8951,"date":"2023-11-27T13:00:27","date_gmt":"2023-11-27T10:00:27","guid":{"rendered":"https:\/\/urbancare.simplyit.solutions\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\/"},"modified":"2023-11-27T13:00:27","modified_gmt":"2023-11-27T10:00:27","slug":"une-etude-de-rappel-de-covid-19-indique-que-la-demi-dose-du-vaccin-pfizer-produit-une-forte-reponse-immunitaire","status":"publish","type":"post","link":"https:\/\/urbancare.clinic\/fr\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\/","title":{"rendered":"Coup de rappel contre le COVID-19\u00a0: une \u00e9tude indique que la demi-dose du vaccin Pfizer produit une forte r\u00e9ponse immunitaire"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/urbancare.clinic\/wp-content\/uploads\/2023\/11\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response.jpg\" class=\"ff-og-image-inserted\" style=\"display:none\"><\/div>\n<p>La prise d\u2019une dose r\u00e9duite du vaccin de rappel Pfizer COVID-19 produit une r\u00e9ponse immunitaire similaire \u00e0 celle d\u2019une dose compl\u00e8te avec moins d\u2019effets secondaires, selon une nouvelle \u00e9tude.<\/p>\n<p>Des chercheurs du Murdoch Children&#039;s Research Institute (MCRI) et du Centre national des maladies transmissibles de Mongolie ont \u00e9valu\u00e9 la r\u00e9ponse immunitaire de diff\u00e9rentes injections de rappel du COVID-19 afin de d\u00e9terminer les futures strat\u00e9gies de vaccination.<\/p>\n<p>L\u2019\u00e9quipe a d\u00e9couvert que les personnes ayant d\u00e9j\u00e0 re\u00e7u les vaccins AstraZeneca ou Sinopharm contre la COVID-19 pr\u00e9sentaient une r\u00e9ponse immunitaire \u00ab non inf\u00e9rieure \u00bb lorsqu\u2019elles recevaient une demi-dose d\u2019un vaccin de rappel Pfizer contre la COVID-19, comparable \u00e0 celles qui avaient re\u00e7u une dose compl\u00e8te.<\/p>\n<p>Cependant, chez les adultes ayant re\u00e7u le vaccin russe Spoutnik V contre la COVID-19, la demi-dose pourrait \u00eatre moins efficace, a r\u00e9v\u00e9l\u00e9 l&#039;\u00e9tude.<\/p>\n<p>\u00ab L&#039;\u00e9tude a r\u00e9v\u00e9l\u00e9 que les participants ayant re\u00e7u une demi-dose ont signal\u00e9 moins de r\u00e9actions locales que ceux recevant des doses compl\u00e8tes (60% contre 72%), y compris moins de douleur et de sensibilit\u00e9. Ils ont \u00e9galement signal\u00e9 moins de r\u00e9actions syst\u00e9miques (25% contre 32%), notamment moins de fi\u00e8vre, de vomissements, de diarrh\u00e9e et de maux de t\u00eate \u00bb, ont indiqu\u00e9 les chercheurs dans un communiqu\u00e9. <a rel=\"noopener nofollow\" href=\"https:\/\/www.eurekalert.org\/news-releases\/1008853\" target=\"_blank\">communiqu\u00e9 de presse<\/a>.<\/p>\n<p>Le premier lot de r\u00e9sultats a \u00e9t\u00e9 publi\u00e9 dans la revue The Lancet Regional Health \u2013 Western Pacific. L&#039;\u00e9tude a port\u00e9 sur 601 participants adultes de Mongolie. Leur r\u00e9ponse immunitaire a \u00e9t\u00e9 \u00e9valu\u00e9e 28 jours apr\u00e8s la vaccination.<\/p>\n<p>\u00ab Le dosage fractionn\u00e9 peut am\u00e9liorer l\u2019acceptabilit\u00e9 et l\u2019adoption du rappel COVID-19 et r\u00e9duire le co\u00fbt par dose des programmes de rappel COVID-19. Les d\u00e9cideurs politiques et les comit\u00e9s consultatifs de vaccination peuvent s&#039;appuyer sur ces donn\u00e9es pour prendre des d\u00e9cisions flexibles en mati\u00e8re de calendriers de vaccination \u00bb, a d\u00e9clar\u00e9 le professeur Kim Mulholland du MCRI, qui faisait partie du groupe consultatif strat\u00e9gique d&#039;experts de l&#039;OMS sur la vaccination.<\/p>\n<p>Les chercheurs effectueront un suivi \u00e0 six et 12 mois pour \u00e9valuer d&#039;autres aspects de la r\u00e9ponse immunitaire, notamment le taux de diminution et de perc\u00e9e des infections.<\/p>\n<p>\u00ab Cette \u00e9tude financ\u00e9e par le CEPI a g\u00e9n\u00e9r\u00e9 des donn\u00e9es pr\u00e9cieuses sur les combinaisons de vaccins qui ont \u00e9t\u00e9 largement distribu\u00e9es via COVAX, ce qui contribuera \u00e0 \u00e9clairer les futures strat\u00e9gies de rappel dans les pays du Sud. Le dosage fractionn\u00e9 peut contribuer \u00e0 un acc\u00e8s \u00e9quitable en rendant la vaccination plus acceptable et moins co\u00fbteuse \u00bb, a d\u00e9clar\u00e9 le Dr Melanie Saville, directrice ex\u00e9cutive de la R&amp;D \u00e0 la Coalition for Epidemic Preparedness Innovations (CEPI).<\/p>\n<p><a href=\"https:\/\/www.medicaldaily.com\/covid-19-booster-shot-study-says-half-dose-pfizer-vaccine-produces-strong-immune-response-471143\">Source quotidienne m\u00e9dicale<\/a><\/p>\n<p>","protected":false},"excerpt":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/urbancare.clinic\/wp-content\/uploads\/2023\/11\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response.jpg\" class=\"ff-og-image-inserted\"><\/div>\n<p>La prise d\u2019une dose r\u00e9duite du vaccin de rappel Pfizer COVID-19 produit une r\u00e9ponse immunitaire similaire \u00e0 celle d\u2019une dose compl\u00e8te avec moins d\u2019effets secondaires, selon une nouvelle \u00e9tude.<\/p>\n<p>Des chercheurs du Murdoch Children&#039;s Research Institute (MCRI) et du Centre national des maladies transmissibles de Mongolie ont \u00e9valu\u00e9 la r\u00e9ponse immunitaire de diff\u00e9rentes injections de rappel du COVID-19 afin de d\u00e9terminer les futures strat\u00e9gies de vaccination.<\/p>\n<p>L\u2019\u00e9quipe a d\u00e9couvert que les personnes ayant d\u00e9j\u00e0 re\u00e7u les vaccins AstraZeneca ou Sinopharm contre la COVID-19 pr\u00e9sentaient une r\u00e9ponse immunitaire \u00ab non inf\u00e9rieure \u00bb lorsqu\u2019elles recevaient une demi-dose d\u2019un vaccin de rappel Pfizer contre la COVID-19, comparable \u00e0 celles qui avaient re\u00e7u une dose compl\u00e8te.<\/p>\n<p>Cependant, chez les adultes ayant re\u00e7u le vaccin russe Spoutnik V contre la COVID-19, la demi-dose pourrait \u00eatre moins efficace, a r\u00e9v\u00e9l\u00e9 l&#039;\u00e9tude.<\/p>\n<p>\u00ab L&#039;\u00e9tude a r\u00e9v\u00e9l\u00e9 que les participants ayant re\u00e7u une demi-dose ont signal\u00e9 moins de r\u00e9actions locales que ceux recevant des doses compl\u00e8tes (60% contre 72%), y compris moins de douleur et de sensibilit\u00e9. Ils ont \u00e9galement signal\u00e9 moins de r\u00e9actions syst\u00e9miques (25% contre 32%), notamment moins de fi\u00e8vre, de vomissements, de diarrh\u00e9e et de maux de t\u00eate \u00bb, ont indiqu\u00e9 les chercheurs dans un communiqu\u00e9. <a rel=\"noopener nofollow\" href=\"https:\/\/www.eurekalert.org\/news-releases\/1008853\" target=\"_blank\">communiqu\u00e9 de presse<\/a>.<\/p>\n<p>Le premier lot de r\u00e9sultats a \u00e9t\u00e9 publi\u00e9 dans la revue The Lancet Regional Health \u2013 Western Pacific. L&#039;\u00e9tude a port\u00e9 sur 601 participants adultes de Mongolie. Leur r\u00e9ponse immunitaire a \u00e9t\u00e9 \u00e9valu\u00e9e 28 jours apr\u00e8s la vaccination.<\/p>\n<p>\u00ab Le dosage fractionn\u00e9 peut am\u00e9liorer l\u2019acceptabilit\u00e9 et l\u2019adoption du rappel COVID-19 et r\u00e9duire le co\u00fbt par dose des programmes de rappel COVID-19. Les d\u00e9cideurs politiques et les comit\u00e9s consultatifs de vaccination peuvent s&#039;appuyer sur ces donn\u00e9es pour prendre des d\u00e9cisions flexibles en mati\u00e8re de calendriers de vaccination \u00bb, a d\u00e9clar\u00e9 le professeur Kim Mulholland du MCRI, qui faisait partie du groupe consultatif strat\u00e9gique d&#039;experts de l&#039;OMS sur la vaccination.<\/p>\n<p>Les chercheurs effectueront un suivi \u00e0 six et 12 mois pour \u00e9valuer d&#039;autres aspects de la r\u00e9ponse immunitaire, notamment le taux de diminution et de perc\u00e9e des infections.<\/p>\n<p>\u00ab Cette \u00e9tude financ\u00e9e par le CEPI a g\u00e9n\u00e9r\u00e9 des donn\u00e9es pr\u00e9cieuses sur les combinaisons de vaccins qui ont \u00e9t\u00e9 largement distribu\u00e9es via COVAX, ce qui contribuera \u00e0 \u00e9clairer les futures strat\u00e9gies de rappel dans les pays du Sud. Le dosage fractionn\u00e9 peut contribuer \u00e0 un acc\u00e8s \u00e9quitable en rendant la vaccination plus acceptable et moins co\u00fbteuse \u00bb, a d\u00e9clar\u00e9 le Dr Melanie Saville, directrice ex\u00e9cutive de la R&amp;D \u00e0 la Coalition for Epidemic Preparedness Innovations (CEPI).<\/p>","protected":false},"author":2,"featured_media":8952,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":{"page_builder":"","fifu_image_url":"https:\/\/urbancare.clinic\/wp-content\/uploads\/2023\/11\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response.jpg","fifu_image_alt":"","footnotes":""},"categories":[27],"tags":[],"class_list":["post-8951","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>COVID-19 Booster Shot: Study Says Half Dose Of Pfizer Vaccine Produces Strong Immune Response - Urban Care Clinic<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/urbancare.clinic\/fr\/une-etude-de-rappel-de-covid-19-indique-que-la-demi-dose-du-vaccin-pfizer-produit-une-forte-reponse-immunitaire\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"COVID-19 Booster Shot: Study Says Half Dose Of Pfizer Vaccine Produces Strong Immune Response - Urban Care Clinic\" \/>\n<meta property=\"og:description\" content=\"Taking a reduced dose of the Pfizer COVID-19 booster vaccine produces a similar immune response as a full dose with fewer side effects, a new study has found.Researchers from Murdoch Children&#039;s Research Institute (MCRI) and the National Center for Communicable Diseases in Mongolia evaluated the immune response from different COVID-19 booster shots to determine future vaccination strategies.The team discovered that people who previously received AstraZeneca or Sinopharm COVID-19 vaccines had a &quot;non-inferior&quot; immune response when given a half dose of a Pfizer COVID-19 booster vaccine, comparable to those who received a full dose.However, in adults who received Russia&#039;s Sputnik V COVID-19 vaccine, the half-dose may be less effective, the study revealed.&quot;The study found half-dose boosted participants reported fewer local reactions than those receiving full doses (60% versus 72%) including less pain and tenderness. They also reported fewer systemic reactions (25% versus 32%) including fewer fevers, vomiting, diarrhea, and headaches,&quot; the researchers said in a news release.The first batch of the findings was published in the journal The Lancet Regional Health - Western Pacific. The study involved 601 adult participants from Mongolia. Their immune response was evaluated 28 days after vaccination.&quot;Fractional dosing may improve COVID-19 booster acceptability and uptake and reduce the per-dose cost of COVID-19 booster programs. Policymakers and immunization advisory committees can draw upon this data to make flexible boosting schedules decisions,&quot; said MCRI Professor Kim Mulholland, who was part of WHO&#039;s Strategic Advisory Group of Experts on Immunization.Researchers will conduct a follow-up at six and 12 months to evaluate other aspects of the immune response, including the rate of waning and breakthrough infections.&quot;This CEPI-funded study has generated valuable data about combinations of vaccines that have been widely distributed through COVAX, which will help to inform future booster strategies in countries in the global south. Fractional dosing can contribute to equitable access by making vaccination more acceptable and less costly,&quot; said Dr. Melanie Saville, executive director of R&amp;D at The Coalition for Epidemic Preparedness Innovations (CEPI).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/urbancare.clinic\/fr\/une-etude-de-rappel-de-covid-19-indique-que-la-demi-dose-du-vaccin-pfizer-produit-une-forte-reponse-immunitaire\/\" \/>\n<meta property=\"og:site_name\" content=\"Urban Care Clinic\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/urbancarezanzibar\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-27T10:00:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/urbancare.clinic\/wp-content\/uploads\/2023\/11\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Urban Care Clinic\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Urban Care Clinic\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\\\/\"},\"author\":{\"name\":\"Urban Care Clinic\",\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/#\\\/schema\\\/person\\\/a304a61bcf298680ee41e2e9ae193930\"},\"headline\":\"COVID-19 Booster Shot: Study Says Half Dose Of Pfizer Vaccine Produces Strong Immune Response\",\"datePublished\":\"2023-11-27T10:00:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\\\/\"},\"wordCount\":350,\"publisher\":{\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/urbancare.clinic\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response.jpg\",\"articleSection\":[\"Medical Daily\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/urbancare.clinic\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\\\/\",\"url\":\"https:\\\/\\\/urbancare.clinic\\\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response\\\/\",\"name\":\"COVID-19 Booster Shot: Study Says Half Dose Of Pfizer Vaccine Produces Strong Immune Response - 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Urban Care Clinic","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/urbancare.clinic\/fr\/une-etude-de-rappel-de-covid-19-indique-que-la-demi-dose-du-vaccin-pfizer-produit-une-forte-reponse-immunitaire\/","og_locale":"fr_FR","og_type":"article","og_title":"COVID-19 Booster Shot: Study Says Half Dose Of Pfizer Vaccine Produces Strong Immune Response - Urban Care Clinic","og_description":"Taking a reduced dose of the Pfizer COVID-19 booster vaccine produces a similar immune response as a full dose with fewer side effects, a new study has found.Researchers from Murdoch Children's Research Institute (MCRI) and the National Center for Communicable Diseases in Mongolia evaluated the immune response from different COVID-19 booster shots to determine future vaccination strategies.The team discovered that people who previously received AstraZeneca or Sinopharm COVID-19 vaccines had a \"non-inferior\" immune response when given a half dose of a Pfizer COVID-19 booster vaccine, comparable to those who received a full dose.However, in adults who received Russia's Sputnik V COVID-19 vaccine, the half-dose may be less effective, the study revealed.\"The study found half-dose boosted participants reported fewer local reactions than those receiving full doses (60% versus 72%) including less pain and tenderness. They also reported fewer systemic reactions (25% versus 32%) including fewer fevers, vomiting, diarrhea, and headaches,\" the researchers said in a news release.The first batch of the findings was published in the journal The Lancet Regional Health - Western Pacific. The study involved 601 adult participants from Mongolia. Their immune response was evaluated 28 days after vaccination.\"Fractional dosing may improve COVID-19 booster acceptability and uptake and reduce the per-dose cost of COVID-19 booster programs. Policymakers and immunization advisory committees can draw upon this data to make flexible boosting schedules decisions,\" said MCRI Professor Kim Mulholland, who was part of WHO's Strategic Advisory Group of Experts on Immunization.Researchers will conduct a follow-up at six and 12 months to evaluate other aspects of the immune response, including the rate of waning and breakthrough infections.\"This CEPI-funded study has generated valuable data about combinations of vaccines that have been widely distributed through COVAX, which will help to inform future booster strategies in countries in the global south. Fractional dosing can contribute to equitable access by making vaccination more acceptable and less costly,\" said Dr. Melanie Saville, executive director of R&amp;D at The Coalition for Epidemic Preparedness Innovations (CEPI).","og_url":"https:\/\/urbancare.clinic\/fr\/une-etude-de-rappel-de-covid-19-indique-que-la-demi-dose-du-vaccin-pfizer-produit-une-forte-reponse-immunitaire\/","og_site_name":"Urban Care Clinic","article_publisher":"https:\/\/www.facebook.com\/urbancarezanzibar","article_published_time":"2023-11-27T10:00:27+00:00","og_image":[{"url":"https:\/\/urbancare.clinic\/wp-content\/uploads\/2023\/11\/covid-19-booster-shot-study-says-half-dose-of-pfizer-vaccine-produces-strong-immune-response.jpg","width":1024,"height":1024,"type":"image\/jpeg"}],"author":"Urban Care Clinic","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Urban Care Clinic","Dur\u00e9e de lecture estim\u00e9e":"2 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