{"id":23000,"date":"2022-01-31T10:46:52","date_gmt":"2022-01-31T17:46:52","guid":{"rendered":"https:\/\/fuentesfidedignas.com.mx\/?p=23000"},"modified":"2022-01-31T10:46:53","modified_gmt":"2022-01-31T17:46:53","slug":"confirman-que-vacunas-covid-19-son-efectivas-contra-omicron-y-otras-variantes","status":"publish","type":"post","link":"https:\/\/fuentesfidedignas.com.mx\/index.php\/2022\/01\/31\/confirman-que-vacunas-covid-19-son-efectivas-contra-omicron-y-otras-variantes\/","title":{"rendered":"Confirman que vacunas Covid-19 son efectivas contra \u00d3micron y otras variantes"},"content":{"rendered":"\n<p><strong><em>La protecci\u00f3n generada por la vacunaci\u00f3n contra Covid-19 no se ve afectada por las variantes emergentes, sugieren estudios cient\u00edficos.<\/em><\/strong><\/p>\n\n\n\n<p>Ciudad de M\u00e9xico.- La respuesta inmunitaria que generan las vacunas contra Covid-19 es suficientemente potente y variada como para responder de manera efectiva contra \u00d3micron y otras variantes del virus del SARS-CoV-2, seg\u00fan estudios del Centro Nacional de Microbiolog\u00eda del Instituto de Salud Carlos III de Madrid.<\/p>\n\n\n\n<p>El primero, publicado hace poco m\u00e1s dos meses, sostiene que la respuesta inmunitaria de los linfocitos T citot\u00f3xicos generada por las vacunas disponibles es lo bastante potente y variada como para responder de manera efectiva contra todas las variantes del virus.<\/p>\n\n\n\n<p>El segundo, que acaba de publicarse, sugiere adem\u00e1s que la protecci\u00f3n inmunitaria celular citot\u00f3xica y auxiliar generada por las vacunas no se ve afectada por la variante \u00d3micron.<\/p>\n\n\n\n<p>Publicadas en la revista Frontiers in Immunology, ambas investigaciones pretend\u00edan evaluar la eficacia de las vacunas contra las cepas actuales y futuras del virus SARS-CoV-2, algo esencial para controlar la pandemia desde el punto de vista cl\u00ednico y para gestionar la protecci\u00f3n social y la recuperaci\u00f3n econ\u00f3mica.<\/p>\n\n\n\n<p>Actualmente, todas las vacunas contra Covid-19 se basan en la cepa original denominada Wuhan-1, pero cada vez m\u00e1s se detectan nuevas variantes y subvariantes del SARS-CoV-2 que acumulan mutaciones frente a esta cepa original, lo que podr\u00eda modificar la eficacia de la respuesta inmunitaria.<\/p>\n\n\n\n<p>El art\u00edculo publicado esta semana ha analizado el posible impacto de las mutaciones presentes en la variante \u00d3micron que podr\u00edan facilitar el escape del virus de las respuestas inmunitarias citot\u00f3xicas y auxiliares generadas por las vacunas, en concreto las asociadas a los 551 alelos de HLA clase I y a los 41 alelos de HLA clase II m\u00e1s abundantes en la poblaci\u00f3n humana.<\/p>\n\n\n\n<p>Mediante un an\u00e1lisis computacional, el nuevo estudio ha confirmado algo que ya suger\u00eda el trabajo publicado en diciembre: estos casi 600 alelos, presentes en m\u00e1s del 90% de la poblaci\u00f3n humana, contienen suficientes ep\u00edtopos de c\u00e9lulas T sin mutaciones de escape a las vacunas en la variante \u00d3micron.<\/p>\n\n\n\n<p>El art\u00edculo anterior, llevado a cabo antes de la aparici\u00f3n de la variante \u00f3micron, centr\u00f3 su estudio en los 551 alelos HLA clase I y lleg\u00f3 a una conclusi\u00f3n similar analizando otras variantes previas del Covid-19.<\/p>\n\n\n\n<p>Para los autores las conclusiones son claras: no hay evidencias de que la protecci\u00f3n mediada por la respuesta celular citot\u00f3xica generada con la vacunaci\u00f3n se vea afectada de manera significativa por las variantes emergentes del SARS-CoV-2.<\/p>\n\n\n\n<p>En su opini\u00f3n, el SARS-CoV-2 tendr\u00eda que mutar much\u00edsimo m\u00e1s de lo que lo est\u00e1 haciendo hasta el momento, y de manera muy distinta a la de ahora, para plantear un posible escenario en el que las vacunas no ofrecieran una buena protecci\u00f3n mediada por la respuesta inmune celular.<\/p>\n\n\n\n<p>En cualquier caso, la vigilancia que se est\u00e1 haciendo de las variantes es fundamental, tal y como se ha visto con \u00d3micron, cuya influencia se contin\u00faa estudiando para conocer a\u00fan mejor su comportamiento.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La protecci\u00f3n generada por la vacunaci\u00f3n contra Covid-19 no se ve afectada por las variantes emergentes, sugieren estudios cient\u00edficos. Ciudad de M\u00e9xico.- La respuesta inmunitaria que generan las vacunas contra Covid-19 es suficientemente potente y variada como para responder de manera efectiva contra \u00d3micron y otras variantes del virus del SARS-CoV-2, seg\u00fan estudios del Centro [&hellip;]<\/p>\n","protected":false},"author":22,"featured_media":23001,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[37],"tags":[332,59,416,407],"class_list":{"0":"post-23000","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-nota-principal","8":"tag-coronavirus","9":"tag-covid-19","10":"tag-sars-cov-2","11":"tag-vacuna-anticovid"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Confirman que vacunas Covid-19 son efectivas contra \u00d3micron y otras variantes - Fuentes Fidedignas<\/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:\/\/fuentesfidedignas.com.mx\/index.php\/2022\/01\/31\/confirman-que-vacunas-covid-19-son-efectivas-contra-omicron-y-otras-variantes\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Confirman que vacunas Covid-19 son efectivas contra \u00d3micron y otras variantes - Fuentes Fidedignas\" \/>\n<meta property=\"og:description\" content=\"La protecci\u00f3n generada por la vacunaci\u00f3n contra Covid-19 no se ve afectada por las variantes emergentes, sugieren estudios cient\u00edficos. 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