{"id":94716,"date":"2020-09-07T10:50:11","date_gmt":"2020-09-07T07:50:11","guid":{"rendered":"http:\/\/www.btv.md\/?p=94716"},"modified":"2020-09-07T10:50:11","modified_gmt":"2020-09-07T07:50:11","slug":"de-ce-vaccinul-anti-covid-ar-putea-sa-nu-mai-fie-eficient-dupa-un-sezon-sau-doua","status":"publish","type":"post","link":"https:\/\/www.btv.md\/ro\/de-ce-vaccinul-anti-covid-ar-putea-sa-nu-mai-fie-eficient-dupa-un-sezon-sau-doua\/","title":{"rendered":"De ce vaccinul anti-COVID ar putea s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103"},"content":{"rendered":"<p><strong>Exist\u0103 riscul ca un anume vaccin anti-coronavirus s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103, iar acest lucru depinde de c\u00e2t de mult ajunge virusul s\u0103 se replice, a explicat la <a href=\"https:\/\/www.digi24.ro\/\">Digi24<\/a>\u00a0biologul R\u0103zvan Popescu Mirceni. El a subliniat c\u0103, tocmai de aceea, este important ca mai ales \u00een zonele foarte aglomerate, s\u0103 se \u00eencetineasc\u00ee\u0103 propagarea virusului, astfel ca el s\u0103 nu se replice de foarte multe ori.<\/strong><\/p>\n<p>Biologul a explicat care este diferen\u021ba dintre muta\u021bia \u0219i tulpina unui virus.<\/p>\n<p>&#8222;Muta\u021bia este fenomenul prin care ceva \u00een lan\u021bul moleculei de ADN a virusului se schimb\u0103, cap\u0103t\u0103 alte informa\u021bii care se ata\u0219eaz\u0103 catenei. Asta \u00eel face s\u0103-\u0219i schimbe parametrii. Survin multe muta\u021bii c\u00e2nd virusul se replic\u0103. Cu c\u00e2t are mai mul\u021bi indivizi pe care s\u0103 se replice \u0219i mai mult\u0103 baz\u0103 genetic\u0103 uman, cu at\u00e2t mai mult sufer\u0103 mai multe muta\u021bii.<\/p>\n<p>Virusul \u00eencearc\u0103 s\u0103 se adapteze tocmai \u00een scopul de a se propaga c\u00e2t mai eficient, de aceea, pe termen lung, se vor selecta acele tulpini virale, specii, solu\u021bii care nu sunt at\u00e2t de agresive cu gazdele. Este \u00een interesul reproducerii virusului s\u0103 se poat\u0103 reproduce c\u00e2t mai mult. dac\u0103 \u00ee\u0219i ucide gaza, aceast\u0103 oportunitate, s\u0103 \u00eei spunem a\u0219a, dispare.<\/p>\n<p>Structura de baz\u0103 a ADN-ului viral r\u0103m\u00e2ne la fel, r\u0103m\u00e2ne acea amprent\u0103 care \u00eei da caracteristica de specie, dar o parte din codul de func\u021bionare al s\u0103u, celulele \u00een care intr\u0103, se schimb\u0103 \u0219i atunci apar tulpini virale noi. Produce acelea\u0219i efecte \u00een organism, dar are fie alte c\u0103i de intrare, fie alte grupe de celule pe care le afecteaz\u0103&#8221;, a precizat biologul.<\/p>\n<p>El a spus c\u0103 exist\u0103 unele particularit\u0103\u021bi ale virusului care \u00eel fac identificabil dac\u0103 nu se schimb\u0103 foarte mult.<\/p>\n<p>Dac\u0103 se schimb\u0103 o serie din particularit\u0103\u021bi, este posibil ca un vaccin x s\u0103 nu mai fie at\u00e2t de eficient \u0219i asta depinde \u0219i de modul lui de ac\u021biune &#8211; poate genera direct anticorpi, cu memorie de scurt\u0103 durat\u0103, fie o garnitur\u0103 de celule care s\u0103 recunoasc\u0103 virusul \u0219i care reprezint\u0103 o memorie de mai lung\u0103 durat\u0103, a afirmat R\u0103zvan Popescu Mirceni.<\/p>\n<p>&#8222;Tot ce \u00eenseamn\u0103 muta\u021bie face virusul s\u0103 \u00ee\u0219i schimba ace\u0219ti parametri, a\u0219a c\u0103 exist\u0103 riscul ca un anume vaccin s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103. Asta depinde de c\u00e2t de mult a ajuns virusul s\u0103 se replice. \u0218i atunci, cu at\u00e2t este mai important, mai ales \u00een zonele foarte aglomerate, s\u0103 se reu\u0219easc\u0103 \u00eencetinirea propag\u0103rii lui. Este important ca virusul s\u0103 nu se replice de foarte multe ori&#8221;, a declarat biologul R\u0103zvan Popescu Mirceni.<\/p>\n<p>Costul viitorului vaccin \u00eempotriva COVID-10 dezvoltat de laboratoarele Sanofi \u0219i Gsk \u201enu este \u00eenc\u0103 pe deplin stabilit\u201d, dar va fi \u201esub 10 euro\u201d, a spune Olivier Bogillot, pre\u0219edintele Sanofi Fran\u021ba, citat de agen\u021bia ANSA, potrivit Mediafax.<\/p>\n<p>Sursa <a href=\"https:\/\/www.digi24.ro\/\">digi24.ro<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Exist\u0103 riscul ca un anume vaccin anti-coronavirus s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103, iar acest lucru depinde de c\u00e2t de mult ajunge virusul s\u0103 se replice, a explicat la Digi24\u00a0biologul R\u0103zvan Popescu Mirceni. El a subliniat c\u0103, tocmai de aceea, este important ca mai ales \u00een zonele foarte aglomerate, s\u0103 se [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":94717,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6349,6377],"tags":[17533],"class_list":["post-94716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-social","category-stiri","tag-de-ce-vaccinul-anti-covid-ar-putea-sa-nu-mai-fie-eficient-dupa-un-sezon-sau-doua"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>De ce vaccinul anti-COVID ar putea s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103 - BTV<\/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:\/\/www.btv.md\/ro\/de-ce-vaccinul-anti-covid-ar-putea-sa-nu-mai-fie-eficient-dupa-un-sezon-sau-doua\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"De ce vaccinul anti-COVID ar putea s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103 - BTV\" \/>\n<meta property=\"og:description\" content=\"Exist\u0103 riscul ca un anume vaccin anti-coronavirus s\u0103 nu mai fie eficient dup\u0103 un sezon sau dou\u0103, iar acest lucru depinde de c\u00e2t de mult ajunge virusul s\u0103 se replice, a explicat la Digi24\u00a0biologul R\u0103zvan Popescu Mirceni. 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