Nkhani

XE idapezeka koyamba ku UK pa February 15 chaka chino.

XE isanachitike, tiyenera kuphunzira zina zoyambira za COVID-19.Kapangidwe ka COVID-19 ndikosavuta, ndiko kuti, ma nucleic acid kuphatikiza chipolopolo cha protein kunja.Mapuloteni a COVID-19 agawidwa m'magawo awiri: protein protein ndi nonstructural protein (NSP).Mapuloteni opangidwa ndi mitundu inayi ya spike protein S, emvulopu protein E, membrane protein M ndi nucleocapsid protein N. Ndiwo mapuloteni ofunikira kupanga tinthu tating'onoting'ono ta virus.Pamapuloteni osakhazikika, pali opitilira khumi ndi awiri.Ndiwo mapuloteni omwe amapangidwa ndi ma virus ndipo amakhala ndi ntchito zina pakugawaniza kachilomboka, koma samamanga ku tizigawo ta kachilomboka.

Chimodzi mwazotsatira zofunika kwambiri pakuzindikira kwa nucleic acid (RT-PCR) ndi gawo la ORF1 a/b la COVID-19.Kusintha kwamitundu ingapo sikukhudza kuzindikira kwa nucleic acid.

Monga kachilombo ka RNA, COVID-19 imakonda kusintha, koma masinthidwe ambiri alibe tanthauzo.Ochepa a iwo adzakhala ndi zotsatira zoipa.Zosintha zochepa zokha zimatha kupititsa patsogolo kuthekera kwawo kwa matenda, pathogenic kapena chitetezo chamthupi.

Zotsatira za kutsatizana kwa majini zimasonyeza kuti ORF1a ya XE inali yochuluka kuchokera ku BA.1 ya Omicron, pamene ena onse amachokera ku Omicron's BA.2, makamaka ma jini a S protein part - zomwe zikutanthauza kuti zizindikiro zake zopatsirana zingakhale pafupi ndi BA.2. .

BA.2 ndi kachilombo koyambitsa matenda komwe kamapezeka m'zaka zaposachedwa.Pakufalikira kwa kachilombo ka HIV, nthawi zambiri timayang'ana pa R0, ndiye kuti, munthu yemwe ali ndi kachilomboka amatha kupatsira anthu angapo popanda chitetezo komanso chitetezo.Kukwera kwa R0, ndikokulirapo kwa infectivity.

Deta yoyambirira inasonyeza kuti kukula kwa XE kunali kwakukulu kuposa BA.2 kunawonjezeka ndi 10%, koma pambuyo pake deta inasonyeza kuti kuyerekezera uku sikukhazikika.Pakalipano, sizingadziwike kuti kukula kwake kwakukulu ndi ubwino wobweretsedwa ndi kukonzanso.

Zimakhulupirira kuti mitundu yayikulu yotsatirayi ingakhale yopatsirana kuposa momwe BA.2 ilili ndi ubwino wambiri, ndipo n'zovuta kufotokoza molondola momwe poizoni wake adzasinthira (kuwonjezeka kapena kuchepa).Pakalipano, chiwerengero cha mitundu yatsopanoyi siili yambiri.Sizingatheke kutsimikizira ngati aliyense wa iwo atha kukhala mitundu yayikulu.Pamafunika kuyang'anitsitsa kwambiri.Kwa anthu wamba, palibe chifukwa chochitira mantha pakadali pano.Poyang'anizana ndi izi za BA.2 kapena zosinthika, katemera akadali wovuta kwambiri.

Poyang'anizana ndi BA yokhala ndi mphamvu yothawirako yamphamvu ya chitetezo chamthupi 2. Pankhani ya katemera wamba (milingo iwiri), mlingo wogwira mtima wa katemera awiri omwe amagwiritsidwa ntchito ku Hong Kong pofuna kupewa matenda achepetsedwa kwambiri, koma akadali ndi mphamvu yamphamvu. zotsatira za kupewa matenda aakulu ndi imfa.Katemera wachitatu utatha, chitetezocho chinasinthidwa bwino.