{"id":1698,"date":"2022-01-31T09:41:36","date_gmt":"2022-01-31T08:41:36","guid":{"rendered":"https:\/\/ingermania.ro\/?p=1698"},"modified":"2022-01-31T09:41:51","modified_gmt":"2022-01-31T08:41:51","slug":"ce-ne-asteapta-dupa-omicron-iata-ce-prevad-virusologii-germani","status":"publish","type":"post","link":"https:\/\/ingermania.ro\/ce-ne-asteapta-dupa-omicron-iata-ce-prevad-virusologii-germani\/","title":{"rendered":"Ce ne a\u0219teapt\u0103 dup\u0103 Omicron? Iat\u0103 ce prev\u0103d virusologii germani"},"content":{"rendered":"

Alpha, Beta, Gamma, Delta, Omicron – \u0219i ce urmeaz\u0103? Este de a\u0219teptat ca coronavirusul s\u0103 continue s\u0103 evolueze. R\u0103m\u00e2ne de v\u0103zut dac\u0103 noile variante vor fi mai infec\u021bioase sau mai periculoase pentru oameni – dar avem date din experien\u021ba acumulat\u0103.<\/p>\n

Virusul va continua cu siguran\u021b\u0103 s\u0103 evolueze<\/strong><\/h3>\n

Coronavirusul Sars-CoV-2 este posibil s\u0103 evolueze \u00een continuare, mai devreme sau mai t\u00e2rziu – pot ap\u0103rea noi variante. Cu toate acestea, se pot face doar specula\u021bii cu privire la propriet\u0103\u021bile lor, explic\u0103 Ralf Bartenschlager, pre\u0219edintele Societ\u0103\u021bii de Virusologie. „Experien\u021ba arat\u0103 \u00eens\u0103 c\u0103, pe m\u0103sur\u0103 ce virusul se adapteaz\u0103 la gazda sa, patogenitatea sa scade de obicei” – spune virusologul.<\/p>\n

Termenul de patogenitate este utilizat pentru a descrie capacitatea de a provoca boli. Bartenschlager explic\u0103 faptul c\u0103 acest lucru nu \u00eenseamn\u0103 c\u0103, \u00een urma acestei adapt\u0103ri, virusul nu va mai provoca nicio boal\u0103, ci c\u0103, de obicei, aceast\u0103 capacitate de a provoca boli este redus\u0103. Un exemplu \u00een acest sens este noua variant\u0103 Omikron, care, de\u0219i se r\u0103sp\u00e2nde\u0219te mai repede \u00een Germania dec\u00e2t varianta Delta, evolu\u021bia bolii este \u00een general mai u\u0219oar\u0103, potrivit cercet\u0103torilor. Richard Neher de la Universitatea din Basel subliniaz\u0103 c\u0103 nu exist\u0103 o leg\u0103tur\u0103 direct\u0103 \u00eentre gravitate \u0219i transmisibilitate. Potrivit acestuia, nu se pot face declara\u021bii generale despre evolu\u021bia virusului \u00een ceea ce prive\u0219te infectivitatea sa, adic\u0103 u\u0219urin\u021ba cu care agentul patogen se r\u0103sp\u00e2nde\u0219te \u00eentr-o anumit\u0103 popula\u021bie.<\/p>\n

Coronavirusul va r\u0103m\u00e2ne cu siguran\u021b\u0103 printre noi<\/strong><\/h3>\n

Se consider\u0103 c\u0103 este foarte probabil ca coronavirusul s\u0103 continue s\u0103 evolueze. ‘Cel pu\u021bin pe termen lung, acest lucru este foarte posibil’, explic\u0103 Bartenschlager, ad\u0103ug\u00e2nd c\u0103 virusul va deveni cu siguran\u021b\u0103 endemic \u0219i astfel ‘va r\u0103m\u00e2ne cu noi’.<\/p>\n

O presiune de selec\u021bie important\u0103 la care sunt supuse acum noile variante Sars-CoV-2 este eficien\u021ba r\u0103sp\u00e2ndirii \u00eentr-o popula\u021bie cu un num\u0103r mare de persoane rezistente la virus, spune Klaus \u00dcberla de la Institutul de Virologie de la Spitalul Universitar din Erlangen. Acest lucru \u00eenseamn\u0103 c\u0103, pentru a supravie\u021bui, virusul trebuie s\u0103 g\u0103seasc\u0103 o modalitate de a sc\u0103pa de r\u0103spunsul imunitar al gazdelor sale, adic\u0103 al oamenilor. Protec\u021bia \u00eempotriva infec\u021biei rezult\u0103 at\u00e2t din vaccinare, c\u00e2t \u0219i din infec\u021bie. Este de a\u0219teptat s\u0103 apar\u0103 \u0219i alte variante care vor sc\u0103pa mai eficient de r\u0103spunsul imunitar.<\/p>\n

Variantele noi ale virusului trebuie detectate din timp<\/strong><\/h3>\n

Deoarece se poate observa \u00een diferite \u021b\u0103ri c\u0103 rata de infectare a noii subvariante Omicron, denumit\u0103 BA.2, este \u00een cre\u0219tere, se poate suspecta c\u0103 BA.2 are o capacitate de r\u0103sp\u00e2ndire mai mare dec\u00e2t BA.1, spune Sandra Ciesek, director al Institutului de Virologie Medical\u0103 de la Spitalul Universitar din Frankfurt. Infec\u021biozitatea mai mare, combinat\u0103 cu o sc\u0103pare mai eficient\u0103 a r\u0103spunsului imunitar, ar putea duce la infectarea unui num\u0103r mai mare de persoane cu varianta BA.2, deoarece protec\u021bia oferit\u0103 de o infec\u021bie anterioar\u0103 sau de un vaccin va fi mai pu\u021bin eficient\u0103 \u00een acest caz. Ciesek adaug\u0103, totu\u0219i, c\u0103 este posibil ca acestea s\u0103 protejeze \u00eempotriva unei evolu\u021bii severe a bolii.<\/p>\n

Neher crede c\u0103 este posibil\u0103 \u0219i o revenire a variantei Delta. „Delta este o variant\u0103 foarte contagioas\u0103 care, dup\u0103 o anumit\u0103 perioad\u0103 de timp, c\u00e2nd imunitatea a sl\u0103bit, poate c\u00e2\u0219tiga din nou avantajul \u00een fa\u021ba Omicron”, spune el \u00eentr-un interviu publicat de Universitatea din Basel. Dar ar putea ap\u0103rea \u0219i o nou\u0103 variant\u0103 cu propriet\u0103\u021bi necunoscute, adaug\u0103 el. El consider\u0103 c\u0103 este necesar, prin urmare, s\u0103 continu\u0103m s\u0103 urm\u0103rim \u00eendeaproape apari\u021bia unor noi variante ale virusului pentru a detecta din timp noile muta\u021bii, pentru a le \u00een\u021belege propriet\u0103\u021bile \u0219i pentru a ne putea preg\u0103ti pentru noi valuri de infec\u021bii.<\/p>\n

\u00dcberla consider\u0103 c\u0103 este imposibil de prezis dac\u0103 noile variante ale virusului vor fi mai mult sau mai pu\u021bin periculoase. Capacitatea de a se r\u0103sp\u00e2ndi rapid \u00eentr-o popula\u021bie \u0219i c\u00e2t de periculoas\u0103 este o variant\u0103 pentru cei infecta\u021bi sunt propriet\u0103\u021bi diferite ale virusurilor care pot evolua independent una de cealalt\u0103.<\/p>\n

Sursa: www.rtl.de<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Alpha, Beta, Gamma, Delta, Omicron – \u0219i ce urmeaz\u0103? Este de a\u0219teptat ca coronavirusul s\u0103 continue s\u0103 evolueze. R\u0103m\u00e2ne de v\u0103zut dac\u0103 noile variante vor fi mai infec\u021bioase sau mai periculoase pentru oameni – dar avem date din experien\u021ba acumulat\u0103. Virusul va continua cu siguran\u021b\u0103 s\u0103 evolueze Coronavirusul Sars-CoV-2 este posibil s\u0103 evolueze \u00een continuare, […]<\/p>\n","protected":false},"author":1,"featured_media":1699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[],"yoast_head":"\nCe ne a\u0219teapt\u0103 dup\u0103 Omicron? 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