EG.5 ikufalikira mofulumira, koma akatswiri amati siwowopsa kuposa matembenuzidwe akale.Mtundu wina watsopano, wotchedwa BA.2.86, unkayang'aniridwa mosamala kuti azitha kusintha.
Pali nkhawa zomwe zikukulirakulira za mitundu ya Covid-19 EG.5 ndi BA.2.86.Mu August, EG.5 inakhala yosiyana kwambiri ku United States, ndi World Health Organization imati ndi "zosiyana siyana za chidwi," kutanthauza kuti ili ndi kusintha kwa majini komwe kumapereka mwayi, ndipo kufalikira kwake kukukwera.
BA.2.86 ndi yocheperako kwambiri ndipo imangotenga gawo lochepa chabe la milandu, koma asayansi adabwa ndi kuchuluka kwa masinthidwe omwe amanyamula.Ndiye kodi anthu ayenera kuda nkhawa bwanji ndi zosankhazi?
Ngakhale kudwala koopsa pakati pa okalamba komanso omwe ali ndi vuto lazachipatala nthawi zonse kumakhala kodetsa nkhawa, monga momwe zimakhalira nthawi yayitali munthu aliyense yemwe ali ndi kachilombo ka COVID-19, akatswiri akuti EG.5 sichiwopseza kwambiri, kapena ayi.Chosankha chachikulu chomwe chilipo pano chidzabweretsa chiwopsezo chachikulu kuposa china chilichonse.
Andrew Pekosh, pulofesa wa tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono pa yunivesite ya Johns Hopkins, adati: "Pali zodetsa nkhawa kuti kachilomboka kakuchulukirachulukira, koma sizili ngati kachilomboka komwe kwafalikira ku United States kwa miyezi itatu kapena inayi yapitayo."... Palibe zosiyana kwambiri. "Bloomberg University School of Public Health."Chifukwa chake ndikuganiza kuti ndichifukwa chake ndikudandaula ndi chisankhochi pompano."
Ngakhale bungwe la World Health Organization linanena kuti malinga ndi zomwe zilipo, "chiwopsezo cha thanzi la anthu opangidwa ndi EG.5 chikuyembekezeka kukhala chochepa padziko lonse lapansi."
Zosiyanasiyana zidapezeka ku China mu February 2023 ndipo zidapezeka koyamba ku US mu Epulo.Ndi mbadwa ya mtundu wa Omicron's XBB.1.9.2 ndipo ili ndi masinthidwe odziwika omwe amawathandiza kupewa ma antibodies a chitetezo chamthupi motsutsana ndi mitundu yakale komanso katemera.Kulamulira uku kungakhale chifukwa chake EG.5 yakhala yovuta kwambiri padziko lonse lapansi, ndipo ingakhalenso imodzi mwa zifukwa zomwe milandu yatsopano ya korona ikukulirakuliranso.
Kusinthaku "kungatanthauze kuti anthu ambiri atha kutenga kachilomboka chifukwa kachilomboka kamatha kupewa chitetezo chokwanira," adatero Dr. Pecos.
Koma EG.5 (yomwe imadziwikanso kuti Eris) sikuwoneka kuti ili ndi mphamvu zatsopano zokhudzana ndi matenda, zizindikiro, kapena kuthekera koyambitsa matenda aakulu.Malinga ndi Dr. Pekosh, kuyezetsa matenda ndi mankhwala monga Paxlovid akadali othandiza.
Dr. Eric Topol, wachiwiri kwa pulezidenti wamkulu wa Scripps Research Center ku La Jolla, Calif., adati sada nkhawa kwambiri ndi chisankhocho.Komabe, angamve bwino ngati katemera watsopanoyo, yemwe akuyembekezeka kutulutsidwa m'dzinja, anali kale pamsika.Chilimbikitso chosinthidwa chinapangidwa kutengera mtundu wina wofanana ndi jini ya EG.5.Akuyembekezeka kupereka chitetezo chabwino ku EG.5 kuposa katemera wa chaka chatha, yemwe adayang'ana mtundu woyamba wa coronavirus ndi Omicron wakale, womwe udali wogwirizana kwambiri.
"Chodetsa nkhawa changa chachikulu ndi kuchuluka kwa anthu omwe ali pachiwopsezo chachikulu," adatero Dr. Topol."Katemera omwe amalandira ndi wotalikirana kwambiri ndi komwe kuli kachilomboka komanso komwe akupita."
Mtundu wina watsopano womwe asayansi akuwunika kwambiri ndi BA.2.86, wotchedwa Pirola.BA.2.86, yochokera ku mtundu wina wa Omicron, yakhala ikugwirizana bwino ndi milandu 29 ya coronavirus yatsopano m'makontinenti anayi, koma akatswiri akukayikira kuti ili ndi kugawidwa kwakukulu.
Asayansi achita chidwi kwambiri ndi kusinthaku chifukwa cha kuchuluka kwa masinthidwe komwe kumatengera.Zambiri mwa izi zimapezeka mu protein ya spike yomwe ma virus amagwiritsa ntchito kupatsira ma cell a anthu komanso omwe chitetezo chathu cha mthupi chimagwiritsa ntchito kuzindikira ma virus.Jesse Bloom, pulofesa ku Fred Hutchinson Cancer Center yemwe amagwira ntchito pa kusinthika kwa ma virus, adati kusintha kwa BA.2.86 kumayimira "kudumpha kwachisinthiko komweko" kuchokera ku zovuta zoyambirira za coronavirus poyerekeza ndi kusintha kwa mtundu woyamba wa Omicron.
Deta yofalitsidwa sabata ino ndi asayansi aku China pa malo a X (omwe poyamba ankadziwika kuti Twitter) adawonetsa kuti BA.2.86 inali yosiyana kwambiri ndi matembenuzidwe am'mbuyomu a kachilomboka kotero kuti imapewa mosavuta ma antibodies opangidwa motsutsana ndi matenda oyamba, ngakhale kuposa EG.5. kuthawa.Umboni (omwe sunasindikizidwebe kapena kuwunikiridwanso ndi anzawo) ukusonyeza kuti katemera wosinthidwa adzakhalanso wopanda mphamvu pankhaniyi.
Musanataye mtima, kafukufuku akuwonetsanso kuti BA.2.86 ikhoza kupatsirana pang'ono poyerekeza ndi mitundu ina, ngakhale maphunziro a labotale samafanana nthawi zonse ndi momwe kachilomboka kamachitira mdziko lenileni.
Tsiku lotsatira, asayansi a ku Sweden adafalitsa pa nsanja X zotsatira zolimbikitsa (komanso zosasindikizidwa komanso zosawerengeka) zosonyeza kuti ma antibodies opangidwa ndi anthu omwe ali ndi kachilombo ka Covid amapereka chitetezo ku BA.2.86 pamene ayesedwa mu labu.chitetezo.Zotsatira zawo zikuwonetsa kuti ma antibodies opangidwa ndi katemera watsopano sadzakhala opanda mphamvu konse motsutsana ndi mtundu uwu.
"Chinthu chimodzi chotheka ndi chakuti BA.2.86 ndi yopatsirana pang'ono kusiyana ndi zosiyana zamakono ndipo kotero sizidzafalitsidwa kwambiri," Dr. Bloom analemba mu imelo ku New York Times."Komabe, ndizothekanso kuti kusiyanasiyana kumeneku kwafalikira - tingodikirira kuti tidziwe zambiri."
Dana G. Smith ndi mtolankhani wa magazini ya Health, komwe amalemba chilichonse kuchokera kumankhwala a psychedelic kuti azichita masewera olimbitsa thupi komanso Covid-19.Werengani zambiri za Dana G. Smith
Nthawi yotumiza: Sep-05-2023