The Lancet<\/b><\/i><\/span>. <\/p>\nLa revisi\u00f3n, que tambi\u00e9n fue realizada por expertos de Estados Unidos, Reino Unido y Hong Kong, no se limit\u00f3 al COVID-19: abarc\u00f3 vacunas de ARNm para influenza, virus sincitial respiratorio, Zika y rabia, entre otras enfermedades<\/b>. <\/p>\nEl veredicto: seguras, eficaces y vigiladas<\/h2>\n
![\"Una](\"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-3.jpg\")
<\/p>\n
La revisi\u00f3n publicada en The Lancet<\/b><\/i> integra, entre otros, los datos de los ensayos cl\u00ednicos de fase 3 \u2014la etapa de prueba en humanos a gran escala antes de la aprobaci\u00f3n oficial\u2014 de las vacunas BNT162b2 (comercializada por Pfizer-BioNTech) y mRNA-1273 (Moderna), que en conjunto incluyeron a cerca de 75.000 personas. <\/p>\n
En esos estudios previos, los eventos adversos graves se presentaron en una frecuencia similar entre quienes recibieron la vacuna y quienes recibieron un placebo. Al analizar esa evidencia acumulada, la revisi\u00f3n aborda una de las dudas m\u00e1s extendidas sobre esta tecnolog\u00eda: si las vacunas de ARNm alteran el ADN. <\/p>\n
Los investigadores lo descartan con base en el mecanismo mismo: el ARNm act\u00faa solo en el citoplasma, el interior de la c\u00e9lula,<\/b> fuera del n\u00facleo donde reside el ADN, y el organismo lo elimina por completo en entre 7 y 14 d\u00edas.<\/p>\n
Los efectos secundarios existen y la revisi\u00f3n los documenta a partir de datos de vigilancia post-autorizaci\u00f3n de las vacunas contra COVID-19. <\/p>\n
![\"La](\"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-5.jpg\")
<\/p>\n
La miocarditis, que es una inflamaci\u00f3n del m\u00fasculo card\u00edaco, apareci\u00f3 con mayor frecuencia en hombres j\u00f3venes de entre 12 y 29 a\u00f1os, especialmente en los primeros siete d\u00edas tras la segunda dosis. <\/p>\n
Los cient\u00edficos sostienen que ese riesgo queda superado por la protecci\u00f3n frente a la enfermedad grave, <\/b>la hospitalizaci\u00f3n y la muerte causada por la infecci\u00f3n por el coronavirus. <\/p>\n
La revisi\u00f3n verific\u00f3 esa eficacia en ni\u00f1os, embarazadas y personas con el sistema inmune comprometido, a partir de datos reales de m\u00faltiples poblaciones.<\/p>\n
Otra limitaci\u00f3n que la revisi\u00f3n identifica al cruzar estudios previos: la inmunidad que generan estas vacunas decrece con el tiempo, lo que explica la necesidad de dosis de refuerzo. Las actualizaciones de f\u00f3rmula ante nuevas variantes mantuvieron la protecci\u00f3n a lo largo de la pandemia, seg\u00fan el an\u00e1lisis publicado en The Lancet<\/b><\/i>.<\/p>\nUna plataforma que mira al futuro<\/h2>\n
![\"Los](\"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-7.jpg\")
<\/p>\n
La revisi\u00f3n tambi\u00e9n cita datos sobre el estado actual de la investigaci\u00f3n en ARNm que apuntan a un horizonte m\u00e1s amplio. <\/p>\n
El 11% de los ensayos cl\u00ednicos activos en esta tecnolog\u00eda se enfoca en vacunas personalizadas contra el c\u00e1ncer, que entrenan al sistema inmune para atacar tumores espec\u00edficos de cada paciente.<\/p>\n
El 30% de esos ensayos explora terapias de ARNm para enfermedades poco frecuentes y otras condiciones, con avances en gripe o influenza, virus sincitial respiratorio \u2014VSR, causa frecuente de bronquiolitis en beb\u00e9s\u2014 y trastornos autoinmunes.<\/p>\n
![\"Los](\"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-8.jpg\")
<\/p>\n
M\u00e1s all\u00e1 de los beneficios en eficacia y seguridad, los investigadores se\u00f1alan que el acceso global sigue sin resolverse: el precio por dosis oscila entre 85 y 290 d\u00f3lares y es una barrera para la mayor\u00eda de los pa\u00edses de ingresos bajos y medios. <\/p>\n
La revisi\u00f3n se\u00f1ala que el Programa de Transferencia de Tecnolog\u00eda de ARNm de la Organizaci\u00f3n Mundial de la Salud (OMS) busca apoyar la producci\u00f3n local en esas regiones<\/b>, una de las deudas pendientes que el propio estudio identifica. <\/p>\n
La investigaci\u00f3n publicada en The Lancet <\/b><\/i>fue financiada por el programa Canada Research Chairs, Michael Smith Health Research BC y la BC Children\u2019s Hospital Foundation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Las vacunas de \u00e1cido ribonucleico mensajero (ARNm) dan a las c\u00e9lulas una instrucci\u00f3n temporal para producir una prote\u00edna inofensiva de un virus y as\u00ed entrenar al sistema inmune sin introducir ning\u00fan pat\u00f3geno completo. Se aplicaron a escala global por primera vez para prevenir la enfermedad COVID-19, que es causada por un coronavirus, y hoy hay…<\/p>\n","protected":false},"author":1,"featured_media":76895,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[81],"tags":[],"class_list":["post-76880","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salud"],"magazineBlocksPostFeaturedMedia":{"thumbnail":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-150x150.jpg","medium":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-300x200.jpg","medium_large":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-768x512.jpg","large":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-1024x683.jpg","1536x1536":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-1536x1024.jpg","2048x2048":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-2048x1365.jpg","newsmatic-featured":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-820x545.jpg","newsmatic-list":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-600x400.jpg","newsmatic-thumb":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-300x200.jpg","newsmatic-small":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-150x95.jpg","newsmatic-grid":"https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-400x250.jpg"},"magazineBlocksPostAuthor":{"name":"admin","avatar":"https:\/\/secure.gravatar.com\/avatar\/76e419471a2083bc3ceab22a763dbbf9b0c1bd15a6214cf3280e2c2dde4580f9?s=96&d=mm&r=g"},"magazineBlocksPostCommentsNumber":"0","magazineBlocksPostExcerpt":"Las vacunas de \u00e1cido ribonucleico mensajero (ARNm) dan a las c\u00e9lulas una instrucci\u00f3n temporal para producir una prote\u00edna inofensiva de un virus y as\u00ed entrenar al sistema inmune sin introducir ning\u00fan pat\u00f3geno completo. Se aplicaron a escala global por primera vez para prevenir la enfermedad COVID-19, que es causada por un coronavirus, y hoy hay...","magazineBlocksPostCategories":["Salud"],"magazineBlocksPostViewCount":5,"magazineBlocksPostReadTime":4,"magazine_blocks_featured_image_url":{"full":["https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-scaled.jpg",2560,1706,false],"medium":["https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-300x200.jpg",300,200,true],"thumbnail":["https:\/\/lobosnews.com.ar\/wp-content\/uploads\/2026\/07\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-13-150x150.jpg",150,150,true]},"magazine_blocks_author":{"display_name":"admin","author_link":"https:\/\/lobosnews.com.ar\/index.php\/author\/lobos-news\/"},"magazine_blocks_comment":0,"magazine_blocks_author_image":"https:\/\/secure.gravatar.com\/avatar\/76e419471a2083bc3ceab22a763dbbf9b0c1bd15a6214cf3280e2c2dde4580f9?s=96&d=mm&r=g","magazine_blocks_category":"Salud<\/a>","yoast_head":"\nVacunas de ARNm: la mayor revisi\u00f3n confirm\u00f3 que son seguras, eficaces y su horizonte va m\u00e1s all\u00e1 de la pandemia - Lobos News<\/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:\/\/lobosnews.com.ar\/index.php\/2026\/07\/01\/vacunas-de-arnm-la-mayor-revision-confirmo-que-son-seguras-eficaces-y-su-horizonte-va-mas-alla-de-la-pandemia-2\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vacunas de ARNm: la mayor revisi\u00f3n confirm\u00f3 que son seguras, eficaces y su horizonte va m\u00e1s all\u00e1 de la pandemia - Lobos News\" \/>\n<meta property=\"og:description\" content=\"Las vacunas de \u00e1cido ribonucleico mensajero (ARNm) dan a las c\u00e9lulas una instrucci\u00f3n temporal para producir una prote\u00edna inofensiva de un virus y as\u00ed entrenar al sistema inmune sin introducir ning\u00fan pat\u00f3geno completo. 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