\nOamenii de \u015ftiin\u0163\u0103 depun eforturi pentru a afla dac\u0103 infectarea cu noul coronavirus \u00eenseamn\u0103 automat dob\u00e2ndirea imunit\u0103\u0163ii \u015fi c\u00e2t timp dureaz\u0103 rezisten\u0163a fa\u0163\u0103 de o nou\u0103 infectare, informeaz\u0103 publica\u0163ia The Wall Street Journal.<\/p>\n
\nPe m\u0103sur\u0103 ce cre\u015fte num\u0103rul persoanelor care au supravie\u0163uit infec\u0163iei cu noul coronavirus, oamenii de \u015ftiin\u0163\u0103 depun eforturi pentru a \u00een\u0163elege c\u00e2t de bine rezist\u0103 aceste persoane la riscul reinfect\u0103rii \u015fi c\u00e2t de mult ar putea dura aceast\u0103 imunitate greu de dob\u00e2ndit.<\/p>\n
\nP\u00e2n\u0103 acum, cei mai mul\u0163i cercet\u0103tori medicali care au studiat forme de coronavirus asociate patogenului care cauzeaz\u0103 Covid-19 – inclusiv SARS, MERS \u015fi r\u0103ceala clasic\u0103 – sunt \u00eencrez\u0103tori c\u0103 persoanele care se recupereaz\u0103 dob\u00e2ndesc o oarecare imunitate fa\u0163\u0103 de SARS-CoV-2, conform studiilor preliminare \u015fi raport\u0103rilor privind situa\u0163ii ale pacien\u0163ilor. \u00cenc\u0103 nu \u015ftiu dac\u0103 aceast\u0103 protec\u0163ie dureaz\u0103 c\u00e2teva luni, c\u00e2\u0163iva ani sau toat\u0103 via\u0163a.<\/p>\n
\n“Argumenta\u0163ia este c\u0103 r\u0103spunsul de protec\u0163ie la SARS-CoV-2 va dura un interval cuprins \u00eentre \u015fase luni \u015fi 60 de ani”, afirm\u0103 Martin Hibberd, specialist \u00een noi boli infec\u0163ioase la Facultatea din Londra pentru Igien\u0103 \u015fi Medicin\u0103 Tropical\u0103.<\/p>\n
\nOri de c\u00e2te ori sistemul imunitar \u00eent\u00e2lne\u015fte un nou virus, configureaz\u0103 un sistem de ap\u0103rare axat pe celule, organe \u015fi \u0163esuturi. For\u0163a \u015fi longevitatea acestor forme de ap\u0103rare sunt influen\u0163ate de ereditate, somn, diet\u0103 \u015fi igien\u0103.<\/p>\n
\nSub presiunea de a rezista, unii agen\u0163i patogeni pot trece de sistemele imunitare dob\u00e2ndind muta\u0163ii.<\/p>\n
\nSARS-CoV-2 are o rat\u0103 de mai pu\u0163in de 25 de muta\u0163ii pe an, comparativ cu gripa sezonier\u0103, care are circa 50 de muta\u0163ii pe an, conform unei analize a consor\u0163iului Nextstrain (Seattle) \u015fi a Universit\u0103\u0163ii din Basel (Elve\u0163ia). Acest lucru le ofer\u0103 cercet\u0103torilor speran\u0163a c\u0103 imunitatea natural\u0103 ori un vaccin ar putea oferi protec\u0163ie \u00eendelungat\u0103, afirm\u0103 Pamela Bjorkman, virolog la Institutul Tehnologic din California.<\/p>\n
\n“\u015etim cu certitudine c\u0103 o mare parte din persoanele expuse la SARS-CoV-2 au reac\u0163ii ale anticorpilor relativ decente \u015fi c\u0103 anticorpii sunt eficien\u0163i. Ceea ce nu \u015ftim este c\u00e2t timp va dura protec\u0163ia. Pornim de la premisa c\u0103 imunitatea nu este at\u00e2t de \u00eendelungat\u0103 ca \u00een cazul alor virusuri”, explic\u0103 virologul Florian Krammer, de la Facultatea de Medicin\u0103 Icahn a Spitalului “Mount Sinai” din New York. Dar chiar dac\u0103 imunitatea se va dovedi a fi doar temporar\u0103, a doua \u00eemboln\u0103vire ar putea fi mai u\u015foar\u0103 dec\u00e2t prima, subliniaz\u0103 dr. Krammer.<\/p>\n","protected":false},"excerpt":{"rendered":"
Oamenii de \u015ftiin\u0163\u0103 depun eforturi pentru a afla dac\u0103 infectarea cu noul coronavirus \u00eenseamn\u0103 automat dob\u00e2ndirea imunit\u0103\u0163ii \u015fi c\u00e2t timp dureaz\u0103 rezisten\u0163a fa\u0163\u0103 de o nou\u0103 infectare, informeaz\u0103 publica\u0163ia The Wall Street Journal. Pe m\u0103sur\u0103 ce cre\u015fte num\u0103rul persoanelor care au supravie\u0163uit infec\u0163iei cu noul coronavirus, oamenii de \u015ftiin\u0163\u0103 depun eforturi pentru a \u00een\u0163elege c\u00e2t […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[46034,20748,6280],"class_list":["post-182199","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-coronavirus","tag-imunitate","tag-wsj"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/182199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=182199"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/182199\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=182199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=182199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=182199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}