{"id":14064,"date":"2021-10-05T09:00:42","date_gmt":"2021-10-05T14:00:42","guid":{"rendered":"http:\/\/losperiodistas.com.mx\/portal\/?p=14064"},"modified":"2021-10-05T09:00:44","modified_gmt":"2021-10-05T14:00:44","slug":"la-eficacia-de-la-vacuna-anticovid-de-pfizer-biontech-cae-del-88-al-47-6-meses-despues-de-la-inoculacion-segun-un-estudio-rt","status":"publish","type":"post","link":"https:\/\/losperiodistas.com.mx\/portal\/la-eficacia-de-la-vacuna-anticovid-de-pfizer-biontech-cae-del-88-al-47-6-meses-despues-de-la-inoculacion-segun-un-estudio-rt\/","title":{"rendered":"La eficacia de la vacuna anticovid de Pfizer\/BioNTech cae del 88 al 47% 6 meses despu\u00e9s de la inoculaci\u00f3n, seg\u00fan un estudio | RT"},"content":{"rendered":"\n<p><em>La investigaci\u00f3n, realizada por Pfizer y Kaiser Permanente, se basa en un an\u00e1lisis de los datos electr\u00f3nicos de m\u00e1s de 3,4 millones de personas.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"577\" src=\"https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2021\/10\/Captura-de-Pantalla-2021-10-05-a-las-8.58.31-1024x577.jpg\" alt=\"\" class=\"wp-image-14065\" srcset=\"https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2021\/10\/Captura-de-Pantalla-2021-10-05-a-las-8.58.31-1024x577.jpg 1024w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2021\/10\/Captura-de-Pantalla-2021-10-05-a-las-8.58.31-300x169.jpg 300w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2021\/10\/Captura-de-Pantalla-2021-10-05-a-las-8.58.31-768x432.jpg 768w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2021\/10\/Captura-de-Pantalla-2021-10-05-a-las-8.58.31-1536x865.jpg 1536w, https:\/\/losperiodistas.com.mx\/portal\/wp-content\/uploads\/2021\/10\/Captura-de-Pantalla-2021-10-05-a-las-8.58.31-2048x1153.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>Una persona recibe una dosis de la vacuna de Pfizer\/BioNTech, D\u00fcsseldorf, Alemania, el 27 de agosto de 2021 Thilo Schmuelgen\u00a0\/ Reuters<\/figcaption><\/figure>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-medium-font-size\">RT<\/p>\n\n\n\n<p>La eficacia de la vacuna de Pfizer\/BioNTech contra el&nbsp;coronavirus&nbsp;disminuy\u00f3 del 88 al 47% 6 meses despu\u00e9s de la administraci\u00f3n de la segunda dosis, indica un estudio, realizado por Pfizer y Kaiser Permanente, y que fue&nbsp;<a href=\"https:\/\/www.thelancet.com\/journals\/lancet\/article\/PIIS0140-6736(21)02183-8\/fulltext#%20\" target=\"_blank\" rel=\"noreferrer noopener\">publicado<\/a>&nbsp;este lunes en la revista The Lancet.<\/p>\n\n\n\n<p>En el marco de su investigaci\u00f3n, los especialistas analizaron los datos electr\u00f3nicos de&nbsp;<strong>m\u00e1s de 3,4 millones de personas<\/strong>, que fueron recibidos entre el 14 de diciembre de 2020 y el 8 de agosto de 2021.<\/p>\n\n\n\n<p>En detalle, los especialistas se\u00f1alaron que la eficacia del f\u00e1rmaco contra la variante Delta era del 93% durante el primer mes tras la vacunaci\u00f3n y cay\u00f3 al&nbsp;<strong>53%<\/strong>&nbsp;4 meses despu\u00e9s. Al mismo tiempo, la eficacia contra otras cepas del coronavirus era del 97% durante el primer mes y disminuy\u00f3 al&nbsp;<strong>67%<\/strong>&nbsp;4 y 5 meses despu\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdni.rt.com\/actualidad\/public_images\/2021.09\/thumbnail\/615236b0e9ff7137890997e6.jpg\" alt=\"Pfizer comienza los ensayos cl\u00ednicos en humanos de un f\u00e1rmaco por v\u00eda oral contra el covid-19\"\/><\/figure>\n\n\n\n<p><a href=\"https:\/\/actualidad.rt.com\/actualidad\/405295-pfizer-ensayos-humanos-farmaco-oral-covid19\">Pfizer comienza los ensayos cl\u00ednicos en humanos de un f\u00e1rmaco por v\u00eda oral contra el covid-19<\/a><\/p>\n\n\n\n<p>Sin embargo, la eficacia del f\u00e1rmaco contra las hospitalizaciones no mostr\u00f3 la misma tendencia negativa y era de m\u00e1s del 90% durante al menos 6 meses.<\/p>\n\n\n\n<p>\u00abLa reducci\u00f3n de la eficacia de la vacuna contra las infecciones con SARS-CoV-2 con el tiempo se debe, probablemente, a la disminuci\u00f3n de la inmunidad con el tiempo, en vez de la variante Delta, que escapa de la protecci\u00f3n de la vacuna\u00bb, reza el texto publicado en The Lancet.<\/p>\n\n\n\n<p>Fuente: https:\/\/actualidad.rt.com\/actualidad\/406094-eficacia-vacuna-anticovid-pfizer-caer<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La investigaci\u00f3n, realizada por Pfizer y Kaiser Permanente, se basa en un an\u00e1lisis de los datos electr\u00f3nicos de m\u00e1s de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":14065,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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