{"id":205072,"date":"2026-06-05T12:28:05","date_gmt":"2026-06-05T11:28:05","guid":{"rendered":"https:\/\/helloproject.es\/vigilancia\/hallan-el-origen-de-dos-brotes-de-norovirus-de-un-hospital-madrileno-en-2024\/"},"modified":"2026-06-05T12:28:05","modified_gmt":"2026-06-05T11:28:05","slug":"hallan-el-origen-de-dos-brotes-de-norovirus-de-un-hospital-madrileno-en-2024","status":"publish","type":"post","link":"https:\/\/helloproject.es\/vigilancia\/hallan-el-origen-de-dos-brotes-de-norovirus-de-un-hospital-madrileno-en-2024\/","title":{"rendered":"Hallan el origen de dos brotes de norovirus de un hospital madrile\u00f1o en 2024"},"content":{"rendered":"<p>Una investigaci\u00f3n del Instituto de Salud Carlos III (ISCIII) y el Hospital de Getafe ha analizado dos brotes consecutivos de norovirus ocurridos en 2024 que afectaron principalmente a personas mayores y trabajadores sanitarios del centro madrile\u00f1o.<\/p>\n<p>Quer\u00edan determinar si el segundo brote correspond\u00eda a una continuaci\u00f3n del primero o a una nueva introducci\u00f3n del virus<\/p>\n<p>El estudio, publicado en la revista Journal of Medical Virology, combina la investigaci\u00f3n epidemiol\u00f3gica tradicional con t\u00e9cnicas avanzadas de secuenciaci\u00f3n gen\u00f3mica y revela que los contagios no estaban relacionados.<\/p>\n<p>El objetivo del trabajo fue determinar si el segundo brote correspond\u00eda a una continuaci\u00f3n del primero o a una nueva introducci\u00f3n del virus, as\u00ed como de comprender con mayor precisi\u00f3n la transmisi\u00f3n intrahospitalaria y evaluar la efectividad de las medidas de control implementadas.<\/p>\n<p>Adem\u00e1s, las conclusiones resaltan la importancia de utilizar pruebas moleculares con alto grado de sensibilidad para detectar el virus y mejorar la identificaci\u00f3n de posibles casos y brotes.<\/p>\n<p>                        <a href=\"https:\/\/www.agenciasinc.es\/Opinion\/Asi-es-el-norovirus-responsable-del-brote-en-el-crucero-de-Burdeos\"><br \/>\n                            <img decoding=\"async\" src=\"https:\/\/cdn.agenciasinc.es\/var\/ezwebin_site\/storage\/images\/noticias\/asi-es-el-norovirus-responsable-del-brote-en-el-crucero-de-burdeos\/12400517-1-esl-MX\/Asi-es-el-norovirus-responsable-del-brote-en-el-crucero-de-Burdeos.jpg\" alt=\"As\u00ed es el norovirus responsable del brote en el crucero de Burdeos\" title=\"As\u00ed es el norovirus responsable del brote en el crucero de Burdeos\" class=\"small_fotoderecha_img\" loading=\"lazy\" \/><br \/>\n                        <\/a><\/p>\n<p>                    <a href=\"https:\/\/www.agenciasinc.es\/Opinion\/Asi-es-el-norovirus-responsable-del-brote-en-el-crucero-de-Burdeos\" class=\"small_fotoderecha_titulo\"><\/a><\/p>\n<h3 class=\"small_fotoderecha_titulo\">As\u00ed es el norovirus responsable del brote en el crucero de Burdeos<\/h3>\n<p>                    <\/p>\n<p>                                Ra\u00fal Rivas Gonz\u00e1lez<\/p>\n<p><a><\/a><\/p>\n<h2>\u00bfQu\u00e9 es el norovirus?<\/h2>\n<p>El norovirus es un virus muy contagioso que causa gastroenteritis (diarrea y v\u00f3mitos) y puede ser especialmente peligroso en hospitales, ya que provoca brotes dif\u00edciles de controlar y supone un riesgo considerable para pacientes vulnerables.<\/p>\n<p>Los brotes asociados a los hospitales pueden tener graves consecuencias, debido a su r\u00e1pida transmisi\u00f3n y a la dificultad para identificar y cortar las cadenas de contagio de los m\u00e9todos tradicionales.<\/p>\n<p>El segundo fue causado por una nueva introducci\u00f3n del virus, no por una continuaci\u00f3n del anterior<\/p>\n<p>El equipo investigador ha analizado muestras de heces de pacientes con s\u00edntomas de gastroenteritis mediante t\u00e9cnicas avanzadas de secuenciaci\u00f3n gen\u00f3mica y an\u00e1lisis filogen\u00e9ticos, lo que ha permitido caracterizar el virus responsable y reconstruir las cadenas de transmisi\u00f3n dentro del hospital.<\/p>\n<p>Los resultados revelan que las estrictas medidas de prevenci\u00f3n aplicadas tras el primer brote lograron cortar la transmisi\u00f3n interna, y que el segundo fue causado por una nueva introducci\u00f3n del virus, no por una continuaci\u00f3n del anterior.<\/p>\n<p>Ambos contagios fueron provocados por una nueva variante de norovirus llamada GII.17[P17], que hab\u00eda comenzado a circular en varios pa\u00edses desde 2023 y 2024.<\/p>\n<p>Adem\u00e1s, se ha determinado que este pat\u00f3geno se transmiti\u00f3 entre las unidades de Geriatr\u00eda y Oncohematolog\u00eda del hospital, algo que no se detect\u00f3 inicialmente porque las pruebas r\u00e1pidas de inmunocromatogr\u00e1fica dieron negativo, por lo que no se declar\u00f3 brote en esa unidad.<\/p>\n<p>                        <a href=\"https:\/\/www.agenciasinc.es\/Noticias\/Cambios-geneticos-en-un-norovirus-explican-el-aumento-de-brotes-de-gastroenteritis-en-el-mundo\"><br \/>\n                            <img decoding=\"async\" src=\"https:\/\/cdn.agenciasinc.es\/var\/ezwebin_site\/storage\/images\/noticias\/cambios-geneticos-en-un-norovirus-explican-el-aumento-de-brotes-de-gastroenteritis-en-el-mundo\/12359966-2-esl-MX\/Cambios-geneticos-en-un-norovirus-explican-el-aumento-de-brotes-de-gastroenteritis-en-el-mundo.jpg\" alt=\"Cambios gen\u00e9ticos en un norovirus explican el aumento de brotes de gastroenteritis en el mundo\" title=\"Cambios gen\u00e9ticos en un norovirus explican el aumento de brotes de gastroenteritis en el mundo\" class=\"small_fotoderecha_img\" loading=\"lazy\" \/><br \/>\n                        <\/a><\/p>\n<p>                    <a href=\"https:\/\/www.agenciasinc.es\/Noticias\/Cambios-geneticos-en-un-norovirus-explican-el-aumento-de-brotes-de-gastroenteritis-en-el-mundo\" class=\"small_fotoderecha_titulo\"><\/a><\/p>\n<h3 class=\"small_fotoderecha_titulo\">Cambios gen\u00e9ticos en un norovirus explican el aumento de brotes de gastroenteritis en el mundo<\/h3>\n<p>                    <\/p>\n<p>                                                                                                                                                <a href=\"https:\/\/www.agenciasinc.es\/Autor\/SINC\"><br \/>\n                                        SINC<br \/>\n                                        <\/a>                                                                                                <\/p>\n<p><a><\/a><\/p>\n<h2>Relaci\u00f3n entre casos<\/h2>\n<p>Gracias al an\u00e1lisis molecular y gen\u00f3mico posterior, se identific\u00f3 la relaci\u00f3n entre los casos de ambas unidades, lo que manifiesta la importancia de emplear m\u00e9todos diagn\u00f3sticos sensibles para el control eficaz de los brotes hospitalarios de norovirus.<\/p>\n<p>Tambi\u00e9n se observ\u00f3 que algunos pacientes segu\u00edan eliminando el virus en las heces incluso despu\u00e9s de la resoluci\u00f3n oficial del brote, algo que podr\u00eda facilitar nuevos contagios.<\/p>\n<p>Algunos pacientes segu\u00edan eliminando el virus en las heces incluso despu\u00e9s de la resoluci\u00f3n oficial del brote<\/p>\n<p>Esta informaci\u00f3n es importante para determinar el tiempo de duraci\u00f3n de medidas de control, ya que\u00a0la prevenci\u00f3n debe adaptarse al hecho de que algunos pacientes puedan seguir siendo contagiosos despu\u00e9s de recuperarse de la infecci\u00f3n.<\/p>\n<p>La investigadora principal del trabajo y responsable de Gastroenteritis V\u00edricas en el Centro Nacional de Microbiolog\u00eda del ISCIII, Mar\u00eda Dolores Fern\u00e1ndez-Garc\u00eda, resalta la importancia de combinar la epidemiolog\u00eda tradicional con el an\u00e1lisis gen\u00f3mico para identificar con mayor precisi\u00f3n las fuentes y cadenas de transmisi\u00f3n de virus altamente contagiosos como el norovirus.<\/p>\n<p>\u201cEste enfoque integrado permite detectar rutas de contagio que podr\u00edan pasar desapercibidas con m\u00e9todos convencionales, y aporta informaci\u00f3n relevante para adaptar y reforzar las medidas de prevenci\u00f3n y control de infecciones, especialmente en entornos con pacientes vulnerables\u201d, concluye.\u00a0<\/p>\n<p>Referencia:\u00a0<\/p>\n<p>J. S.Kutter.\u00a0et al.\u00a0\u201cUnraveling the Transmission Dynamics of a Novel Norovirus GII.17[P17] Lineage During Two Consecutive Outbreaks in a Spanish Hospital. <a href=\"https:\/\/doi.org\/10.1002\/jmv.70966\" target=\"_blank\">Journal of Medical Virology<\/a>. 2026<\/p>","protected":false},"excerpt":{"rendered":"<p>Una investigaci\u00f3n del Instituto de Salud Carlos III (ISCIII) y el Hospital de Getafe ha analizado dos brotes consecutivos de norovirus ocurridos en 2024 que afectaron principalmente a personas mayores y trabajadores sanitarios del centro madrile\u00f1o. Quer\u00edan determinar si el segundo brote correspond\u00eda a una continuaci\u00f3n del primero o a una nueva introducci\u00f3n del virus [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"","ping_status":"","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":"","ast-disable-related-posts":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[],"class_list":["post-205072","post","type-post","status-publish","format-standard","hentry","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.9 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Hallan el origen de dos brotes de norovirus de un hospital madrile\u00f1o en 2024 - bip4ex<\/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:\/\/helloproject.es\/vigilancia\/hallan-el-origen-de-dos-brotes-de-norovirus-de-un-hospital-madrileno-en-2024\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hallan el origen de dos brotes de norovirus de un hospital madrile\u00f1o en 2024\" \/>\n<meta property=\"og:description\" content=\"Una investigaci\u00f3n del Instituto de Salud Carlos III (ISCIII) y el Hospital de Getafe ha analizado dos brotes consecutivos de norovirus ocurridos en 2024 que afectaron principalmente a personas mayores y trabajadores sanitarios del centro madrile\u00f1o. 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