{"id":15338,"date":"2021-07-17T21:10:09","date_gmt":"2021-07-17T21:10:09","guid":{"rendered":"https:\/\/noti-america.com\/site\/ecuador\/?p=15338"},"modified":"2021-07-17T21:10:09","modified_gmt":"2021-07-17T21:10:09","slug":"asi-es-como-los-cientificos-detectan-nuevas-variantes-de-covid-19","status":"publish","type":"post","link":"https:\/\/noti-america.com\/site\/ecuador\/2021\/07\/17\/asi-es-como-los-cientificos-detectan-nuevas-variantes-de-covid-19\/","title":{"rendered":"As\u00ed es como los cient\u00edficos detectan nuevas variantes de COVID-19"},"content":{"rendered":"<p>REDACCI\u00d3N NOTI AM\u00c9RICA (ECUADOR)<\/p>\n<ul>\n<li style=\"text-align: justify\"><strong>La variante Delta del virus COVID-19 se est\u00e1 extendiendo por todo el mundo.<\/strong><\/li>\n<li style=\"text-align: justify\"><strong>Para los cient\u00edficos, es una batalla constante mantenerse al d\u00eda con las nuevas mutaciones.<\/strong><\/li>\n<li style=\"text-align: justify\"><strong>As\u00ed es como detectan nuevas cepas en un intento por adelantarse al virus.<\/strong><\/li>\n<\/ul>\n<div class=\"article__lead-image\">\n<figure class=\"st__content-block st__content-block--image st__content-block--image-\">\n<div class=\"st__content-block--image-inner\">\n<div class=\"st__content-block--image-inner\">\n<figure class=\"placeholder letterbox  cropped\">\n<div class=\"placeholder-inner\">\n<div style=\"width: 855px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets.weforum.org\/article\/image\/Uej_Z96qIyW1xQNHn06_nmdNKDyRj5KMbn8uvhg3M9E.jpg\" alt=\"COVID-19\" width=\"845\" height=\"475\" \/><p class=\"wp-caption-text\">Los virus son par\u00e1sitos microsc\u00f3picos que no pueden sobrevivir mucho tiempo fuera del cuerpo de un animal hu\u00e9sped. Imagen: Unsplash \/ Fusion Medical Animation.<\/p><\/div>\n<\/div>\n<\/figure>\n<\/div>\n<\/div>\n<\/figure>\n<div class=\"st__content-block st__content-block--text\">\n<p style=\"text-align: justify\"><span>Son detectives de virus, una red global de cient\u00edficos gubernamentales y acad\u00e9micos que buscan nuevas cepas de COVID-19, como la variante Delta de r\u00e1pida propagaci\u00f3n.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><b><span>Entonces, \u00bfc\u00f3mo identifican y rastrean los cient\u00edficos las nuevas variantes de virus a medida que surgen?<\/span><\/b><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>Los virus son par\u00e1sitos microsc\u00f3picos que no pueden sobrevivir mucho tiempo fuera del cuerpo de un animal hu\u00e9sped.\u00a0Como organismos vivos, son mucho m\u00e1s peque\u00f1os que las bacterias; el\u00a0<\/span><a href=\"https:\/\/www.nature.com\/scitable\/topicpage\/the-origins-of-viruses-14398218\/\" target=\"_blank\" rel=\"noopener\"><span>virus de<\/span><\/a><span>\u00a0la\u00a0<a href=\"https:\/\/www.nature.com\/scitable\/topicpage\/the-origins-of-viruses-14398218\/\" target=\"_blank\" rel=\"noopener\">polio, por ejemplo, es 10.000 veces m\u00e1s peque\u00f1o que un grano de sal<\/a>\u00a0.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>Pero tienen su propio ADN o ARN (\u00e1cido desoxirribonucleico y \u00e1cido ribonucleico), los\u00a0<\/span><a href=\"https:\/\/www.genome.gov\/about-genomics\/fact-sheets\/Deoxyribonucleic-Acid-Fact-Sheet\" target=\"_blank\" rel=\"noopener\"><span>componentes b\u00e1sicos de la vida<\/span><\/a><span>\u00a0.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>Esto les permite mutar en nuevas formas.\u00a0En el caso del SARS-CoV-2, el virus que causa COVID-19, los cient\u00edficos han identificado hasta ahora\u00a0<\/span><a href=\"https:\/\/www.who.int\/en\/activities\/tracking-SARS-CoV-2-variants\/\" target=\"_blank\" rel=\"noopener\"><span>cuatro variantes que han sido clasificadas como preocupantes<\/span><\/a><span>\u00a0porque se propagan m\u00e1s f\u00e1cilmente, son m\u00e1s virulentas o resistentes a las vacunas.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><b><span>\u00bfC\u00f3mo se descubri\u00f3 la variante Alpha?<\/span><\/b><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>La variante brit\u00e1nica o alfa del virus COVID-19 se vio por primera vez en Kent, sureste de Inglaterra, en septiembre de 2020. La Dra. Meera Chand fue una de los epidemi\u00f3logos que monitorearon la situaci\u00f3n.\u00a0\u00abInmediatamente supimos que hab\u00edamos encontrado algo muy preocupante\u00bb, dijo en una publicaci\u00f3n en el\u00a0<\/span><a href=\"https:\/\/publichealthmatters.blog.gov.uk\/2021\/04\/22\/disease-detectives-finding-the-uks-dominant-covid-19-variant-and-the-race-to-understand-its-impact\/\" target=\"_blank\" rel=\"noopener\"><span>sitio web de Public Health England<\/span><\/a><span>\u00a0.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>\u201cNormalmente, cuando mira muestras, esperar\u00eda ver muchos grupos peque\u00f1os formados por m\u00faltiples cepas que son ligeramente diferentes.\u00a0Pero cuando miramos a Kent, vimos que alrededor del 50% de las muestras eran extremadamente similares, formando un grupo masivo \u00ab.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>De modo que se reuni\u00f3 r\u00e1pidamente un equipo que inclu\u00eda especialistas para estudiar las caracter\u00edsticas de las muestras de Kent.\u00a0Pero ten\u00edan un problema.\u00a0No se hab\u00edan sometido suficientes muestras a la secuenciaci\u00f3n completa del genoma.<\/span><\/p>\n<\/div>\n<figure class=\"st__content-block st__content-block--image st__content-block--image-default\" style=\"text-align: justify\">\n<div class=\"st__content-block--image-inner\">\n<div class=\"st__content-block--image-inner\">\n<div style=\"width: 733px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"js-lazyload loaded\" src=\"https:\/\/assets.weforum.org\/editor\/EVMzJYDSDRcgmK_MtTpRnZ3E4_bxRqEG7tv_si2Qlc8.jpg\" alt=\"Los cient\u00edficos trabajan en un laboratorio donde secuencian los genomas del nuevo coronavirus en COVID-19 Genomics UK, en el campus de 55 acres del Wellcome Sanger Institute al sur de Cambridge, Gran Breta\u00f1a, el 12 de marzo de 2021. Fotograf\u00eda tomada el 12 de marzo de 2021. REUTERS \/ Dylan Martinez\" width=\"723\" height=\"482\" data-src=\"https:\/\/assets.weforum.org\/editor\/EVMzJYDSDRcgmK_MtTpRnZ3E4_bxRqEG7tv_si2Qlc8.jpg\" data-srcset=\"https:\/\/assets.weforum.org\/editor\/responsive_large_KWFFvCA5othtowPpZJVkKmTCyRE3W2hgPYXuqenEM00.jpg 850w, https:\/\/assets.weforum.org\/editor\/responsive_medium_Wck1HL1GtfEr79P9JnaW-Ci9RRoG-rg7wwZXC75AF5U.jpg 640w, https:\/\/assets.weforum.org\/editor\/responsive_small_5NY-IQsnjpTdhMnKe24NT3UVp3Jjo9IAlD1AOHHENCc.jpg 320w\" data-sizes=\"100vw\" data-was-processed=\"true\" \/><p class=\"wp-caption-text\">Un cient\u00edfico trabaja en la secuenciaci\u00f3n del genoma de una variante de COVID-19 en el Wellcome Sanger Institute, Cambridge, Reino Unido. Imagen: REUTERS \/ Dylan Martinez<\/p><\/div>\n<\/div>\n<\/div>\n<\/figure>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>La ayuda vino de un lugar inesperado.\u00a0El personal de los laboratorios &#8216;faro&#8217; locales, donde se analizan miles de muestras al d\u00eda, not\u00f3 un problema.\u00a0Sus pruebas no pudieron detectar un gen que esperaban ver.\u00a0De hecho, el gen faltante result\u00f3 ser caracter\u00edstico de la nueva variante.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>\u201cAl principio pensaron que hab\u00eda un problema con la prueba.\u00a0No funcionaba, y la velocidad a la que no funcionaba estaba aumentando de forma vertiginosa \u201d, dijo el Dr. Chand.\u00a0\u00abLa identificaci\u00f3n de casos a trav\u00e9s de los laboratorios de Lighthouse fue un gran paso adelante\u00bb.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>Sobre todo porque la secuenciaci\u00f3n del genoma completo lleva tiempo, y r\u00e1pidamente qued\u00f3 claro que la nueva variante se estaba extendiendo r\u00e1pidamente.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><b><span>\u00bfSon peligrosas todas las mutaciones?<\/span><\/b><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>Los Centros para el Control y la Prevenci\u00f3n de Enfermedades (CDC) de EE. UU. Definen las mutaciones como \u00abcambios en el c\u00f3digo gen\u00e9tico de un virus que ocurren naturalmente con el tiempo cuando un animal o una persona se infecta\u00bb.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>\u00abLa mayor\u00eda de los cambios gen\u00e9ticos que vemos en este virus son como las cicatrices que las personas acumulan a lo largo de su vida: marcas incidentales del camino, la mayor\u00eda de las cuales no tienen gran importancia o funci\u00f3n funcional\u00bb, dice el\u00a0<\/span><a href=\"https:\/\/www.hopkinsmedicine.org\/health\/conditions-and-diseases\/coronavirus\/a-new-strain-of-coronavirus-what-you-should-know\" target=\"_blank\" rel=\"noopener\"><span>profesor Stuart Ray de la Facultad de Medicina de la Universidad Johns Hopkins.<\/span><\/a><span>\u00a0.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>\u00abCuando la evidencia es lo suficientemente fuerte de que un cambio gen\u00e9tico viral est\u00e1 causando un cambio en el comportamiento del virus, obtenemos una nueva perspectiva sobre c\u00f3mo funciona este virus\u00bb.<\/span><\/p>\n<\/div>\n<figure class=\"st__content-block st__content-block--image st__content-block--image-default\" style=\"text-align: justify\">\n<div class=\"st__content-block--image-inner\">\n<div class=\"st__content-block--image-inner\">\n<div style=\"width: 855px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"js-lazyload loaded\" src=\"https:\/\/assets.weforum.org\/editor\/KEgBDOy-AHQQp954Bm_g-W_Hmr7syJLgCqjB9azJ_PM.jpg\" alt=\"un gr\u00e1fico que muestra la prevalencia de la variante delta \" width=\"845\" height=\"1056\" data-src=\"https:\/\/assets.weforum.org\/editor\/KEgBDOy-AHQQp954Bm_g-W_Hmr7syJLgCqjB9azJ_PM.jpg\" data-srcset=\"https:\/\/assets.weforum.org\/editor\/responsive_large_AIPAMffUWnjhZBloKjjxXfNSuwfEj1gSHNMihXPV5Nw.jpg 850w, https:\/\/assets.weforum.org\/editor\/responsive_medium_ndNp1lT8mDPE07vBL62uJlZjHXmJJ9Nt4x0X6ARz074.jpg 640w, https:\/\/assets.weforum.org\/editor\/responsive_small_hF0_3Uw28E_txAD2qW-Y3FjWkeQBIYo9HmSXXj9ZDaE.jpg 320w\" data-sizes=\"100vw\" data-was-processed=\"true\" \/><p class=\"wp-caption-text\">La variante delta representa el 96% de las infecciones por COVID en el Reino Unido. Imagen: Statista<\/p><\/div>\n<\/div>\n<\/div>\n<\/figure>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><b><span>\u00bfLas vacunas protegen contra variantes?<\/span><\/b><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>\u00abLa buena noticia es que todas las vacunas de la OMS que figuran en la lista de uso de emergencia protegen contra el desarrollo de enfermedades graves, la hospitalizaci\u00f3n y la muerte debido a la variante Delta\u00bb, dijo el 1 de julio el Dr. Soumya Swaminathan, cient\u00edfico jefe de la Organizaci\u00f3n Mundial de la Salud.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--iframe st__content-block--scale\" style=\"text-align: justify\"><\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>Hablando en un\u00a0<\/span><a href=\"https:\/\/youtu.be\/S_SJZBJgcog?t=59\" target=\"_blank\" rel=\"noopener\"><span>video de la OMS<\/span><\/a><span>\u00a0, el Dr. Swaminathan agreg\u00f3: \u201cAhora hay estudios de pa\u00edses donde hay un predominio de la variante Delta para mostrar que las personas que han sido vacunadas tienen muchas menos probabilidades de terminar en el hospital.\u00a0Y necesita el ciclo completo de vacunaci\u00f3n para brindarle esa inmunidad completa que lo proteja contra la variante Delta \u00ab.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>El Foro Econ\u00f3mico Mundial ha establecido la\u00a0<\/span><a href=\"https:\/\/www.weforum.org\/platforms\/covid-action-platform\"><span>Plataforma de Acci\u00f3n COVID para coordinar<\/span><\/a><span>\u00a0los esfuerzos de las empresas y otras partes interesadas para minimizar el impacto de la pandemia en la salud p\u00fablica y limitar su potencial para una mayor alteraci\u00f3n de vidas y econom\u00edas en todo el mundo.<\/span><\/p>\n<\/div>\n<div class=\"st__content-block st__content-block--text\" style=\"text-align: justify\">\n<p><span>El Foro tambi\u00e9n est\u00e1 utilizando su\u00a0<\/span><a href=\"https:\/\/uplink.weforum.org\/uplink\/s\/\" target=\"_blank\" rel=\"noopener\"><span>plataforma de crowdsourcing de innovaci\u00f3n UPLINK<\/span><\/a><span>\u00a0para generar nuevas ideas para soluciones viables y escalables a los desaf\u00edos planteados por COVID-19, incluida una\u00a0<\/span><a href=\"https:\/\/uplink.weforum.org\/uplink\/s\/uplink-contribution\/a012o00001OSiBUAA1\/kwick-doctor-app-covid-monitoring-system-remotely\" target=\"_blank\" rel=\"noopener\"><span>aplicaci\u00f3n de inteligencia artificial<\/span><\/a><span>\u00a0para monitorear las infecciones de COVID-19 de forma remota.<\/span><\/p>\n<\/div>\n<\/div>\n<p style=\"text-align: justify\"><strong>Foro: Foro Econ\u00f3mico Mundial<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>REDACCI\u00d3N NOTI AM\u00c9RICA (ECUADOR) La variante Delta del virus COVID-19 se est\u00e1 extendiendo por todo el mundo. Para los cient\u00edficos, es una batalla constante mantenerse al d\u00eda con las nuevas mutaciones. As\u00ed es como&#46;&#46;&#46;<\/p>\n","protected":false},"author":17,"featured_media":15339,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"twitter_242054905_242054905":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[42],"tags":[],"class_list":["post-15338","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"acf":[],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.9 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>As\u00ed es como los cient\u00edficos detectan nuevas variantes de COVID-19 - Ecuador | Noti-America.com<\/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:\/\/noti-america.com\/site\/ecuador\/2021\/07\/17\/asi-es-como-los-cientificos-detectan-nuevas-variantes-de-covid-19\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"As\u00ed es como los cient\u00edficos detectan nuevas variantes de COVID-19\" \/>\n<meta property=\"og:description\" content=\"REDACCI\u00d3N NOTI AM\u00c9RICA (ECUADOR) La variante Delta del virus COVID-19 se est\u00e1 extendiendo por todo el mundo. 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