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Yakashandurwa sosi: WuXi AppTec timu mupepeti

MuGuangzhou, China, mapurisa ane basa rekubatsira kuferefeta kwechirwere ichi akaburitsa vhidhiyo yekutarisa: Muresitorendi imwe chete, vaviri vakapinda muimba yekugezera mumwe mushure memumwe pasina kana kubata.Masekonzi gumi nemana chete enguva yekuvapo akabvumira hutachiona hwekorona itsva kuwana mukana, kupedzisa kupararira.

mufananidzo001WuXi AppTec zvemukati timu mepu

MuAustralia kumaodzanyemba kwehemisphere, vanhu vanoshamiswawo kuona "hutachiona" hwakafanana.Vakuru vehutano muNew South Wales pavakatsvaga nyaya idzi, vakawana kuti munhu ane hutachiona uye vanhu vatatukungo "pfuura" kunze kweshopu kana chitoro chekofi, nekukurumidza kupinda munzvimbo imwechete, uye hutachiona hwakakonzera hutachiona.

Mhedzisiro yehutachiona genome kutevedzana pamasampuli enyaya idzi yakaratidza kuti iyo coronavirus nyowanichakakonzera hutachiona ndehweDelta mutant strain, inova itsva coronavirus mutant strain yakatanga kuwanikwa muIndia muna Gumiguru 2020.Academician Zhong Nanshan akataurawo mubvunzurudzo ichangoburwa nevezvenhau kuti "delta dhizaini ine mutoro wakakura,gasi rakabuditswa rine chepfu uye rinotapukira zvakanyanya", kuitira kuti miitiro yakaoma inodiwa kutsanangura" vepedyo vanofambidzana"...

Kuparadza nyika

Muna Kubvumbi naChivabvu 2021, kwakave nekutyisa kwedenda muIndia.Zvinoenderana nedata rakaburitswa neIndia Ministry of Health,huwandu hwenyaya dzichangosimbiswa muzuva rimwe dzakapfuura mazana mana ezviuru panguva imwe chete!Kunyangwe paine kuungana kwakakura uye zvimwe zvinhu kuseri kwayo, chokwadi chisingarambiki ndechekuti huwandu hwevanhu vakatapukirwa neDelta mutant strain huri kuwedzera nekukurumidza.

Kunze kweIndia, kubva kuNepal kuenda kuSoutheast Asia, kunzvimbo yakakura kutenderera pasirese, Delta mutant strain yakapararirawo mumwedzi miviri yapfuura.

Musiyano weDelta ndiwo wakanyanya kutapurirana wawanikwa kusvika parizvino.Yakawanikwa munyika / nharaunda dze85 uye yakapararira nekukurumidza pakati pevanhu vasina kubayiwa.” Director-General weWorld Health Organisation Dr. Tan Desai paChikumi 25 Vakadaro pamusangano wevatori venhau.

mufananidzo002Dr. Tan Desai, Director-General weWorld Health Organisation |ITU Mifananidzo kubva kuGeneva, Switzerland, CC BY 2.0, kuburikidza neWikimedia Commons)

Mhosva yekutanga yehutachiona hweDelta yakaonekwa kuUnited Kingdom pakati paApril.Panguva iyoyo, mushure memwedzi mishoma ye "blockade", nekufambira mberi kwejekiseni, huwandu hwehutachiona, zvipatara, uye rufu zvese zvakaderera zvakanyanya, uye denda rakaita kunge riri kuwedzera.

Nekudaro, iyo Delta mutant strain yakakurumidza kuburitsa yechitatu mafungu edenda repamusoro muUK., uye huwandu hwenyaya nyowani pazuva dzakapfuura 8,700.Hutachiona hwakapararira nekukurumidza pakati pevanhu vasina kubaiwa, zvichimanikidza UK kumisa hurongwa hwayo hwekuvhurazve.Saizvozvo,yazvino Delta mutant strain yakatsiva Alpha mutant strain (kureva, B.1.1.7 mutant strain) yakatanga kuwanikwa muUK, uye yave yakakosha zvakanyanya yemuno coronavirus.

Mukondinendi yeAmerica, maitiro eDelta akasiyana akakonzerawo kunetseka.Maererano nemuenzaniso weongororo yakaitwa muCalifornia,nhamba yezviitiko zvakakonzerwa neAlpha variant strain, iyo yaimbova "mainstream", yakaderera kubva kune anopfuura 70% mukupera kwaApril kusvika inenge 42% mukupera kwaJune, uye "kusimuka" kweDelta kusiyanisa kunokonzera izvi.Chikonzero chikuru chekuchinja uku.Mukuru weUS Centers for Disease Control and Prevention (CDC) akayambira kuti mumavhiki mashoma anotevera, mutsauko weDelta unogona kunge uri musiyano mukuru wekoronavirus muUnited States.

mufananidzo003Chikamu cheakasiyana COVID-19 mutant virus strains (Delta mutant strains akasvibira) |nextstrain.org)

MuChina, kuwedzera kuGuangzhou, nyaya dzeDelta mutant strains dzakawanikwawo muShenzhen, Dongguan nedzimwe nzvimbo dziri pedyo.Kutarisana kwevanhu neDelta mutant strains kwatanga.

Kwete chete kupararira kune simba rakawanda

Kubva pakatanga denda idzva rekorona kweinopfuura gore, mhando dzakasiyana dzemutant dzakakwezva kutarisisa, kusanganisira iyo Alpha mutant strain yakatanga kusimbiswa kuUnited Kingdom munaGunyana 2020, uye Beta mutant strain (B.1.351) iyo yakatanga kusimbiswa muSouth Africa muna Chivabvu 2020.

Musi waChivabvu 11, World Health Organisation yakaronga Delta mutant strain yakatanga kuwanikwa muIndia seyechina "kusiyana kwekunetseka” (VOC).Zvinoenderana netsanangudzo yeWHO, VOC zvinoreva"Inofungidzirwa kana kusimbiswa kuti ichakonzera kuwedzera kutapurirana kana muchetura;kana kuwedzera kana kuchinja muzviratidzo zvechirwere chekliniki;kana kukonzera shanduko mukuongororwa kuripo, matanho ekurapa, uye kushanda kwejekiseni.

Iripo data kubva kumasangano akadai seDhipatimendi rePublic Health yeUnited Kingdom (PHE) inoratidza izvozvosimba rekutapurirana reDelta variant strain rakakwirira 100% pane iro rekutanga kunetsa;zvichienzaniswa neiyo Alpha variant strain yaive ichitenderera pasirese muhafu yechipiri yegore rapfuura, iyo Delta musiyano Kugona kutapurirana kweiyo strain yakanyanya kusimba, mwero wekutapurirana uri 60% kumusoro.

Pamusoro pekuwedzera kukuru kwekutapurira uye kutapurirana simba, Feng Zijian, muongorori kuChinese Center for Disease Control and Prevention, akati paaiunza nyaya dzichangoburwa dzekorona nyowani muGuangzhou, Delta mutant strain "chimwe chinhu ndechekuti nguva yekukuchidzira kana nguva yekupfuura inopfupikiswa-munguva pfupi).Zvizvarwa zvishanu kana zvitanhatu zvakapfuura mumazuva gumi chete.” Pamusoro pezvo, ongororo yePCR yemasampuli kubva kuvanhu vane hutachiona yakaratidza kuti huwandu hwehutachiwana hwakawedzera zvakanyanya, izvo zvakaita kuti hutachiona huwedzere kuitika.

KuUnited Kingdom, uko musiyano weDelta wakaverengera makumi mapfumbamwe muzana emhosva, humbowo hwekutanga hunoratidza kutikana zvichienzaniswa neiyo Alpha musiyano, vanhu vanotapukirwa nemusiyano weDelta vangangoita kaviri mukana wekuiswa muchipatara, zvinoreva kuti njodzi yekuiswa muchipatara inowedzerwa ne100%.

mufananidzo004Kwakakosha shanduko yemajini inotakurwa nemhando dzakasiyana dze coronavirus mutant virus strains izvo zviri kunetsa parizvino.Pakati pavo, iyo Delta mutant strain ine 13 yakasarudzika genetic mutations ichienzaniswa neyekutanga hutachiona strain |WuXi AppTec Content Team

Tichitarisa kubva kune genetic kutevedzana kweDelta mutant strain,ine imwe yakasarudzika shanduko mujini inokodha iyo spike protein yeiyo coronavirus nyowani, iyo isingangokanganisa kutapurirana kwehutachiona chete, asi zvakare inogona kukonzera immune system kutiza..Mune mamwe mazwi, kusadzikamisa masoja ekudzivirira chirwere anogadzirwa mushure mekutapukirwa kwekare kana kubaya kunogona kuderedza kugona kusunga kune iyo Delta musiyano.

Kukosha kwejekiseni

Pamberi pekutyisidzira kweDelta musiyano, mishonga iripo inogona kuramba ichipa dziviriro yakakwana?

"Nature" yakaburitsa bepa rekutsvagisa munaJune 10th.Mhedzisiro yemhedzisiro yekugona kweantibody neutralization yakaratidza izvozvomavhiki maviri kana mana mushure mekuita jekiseni rakazara remadhozi maviri eMRNA neocorona vaccine BNT162b2, iyo neutralizing antibody inogadzirwa mumuviri wemunhu ine mhedzisiro yakanaka paDelta.The strain ichine yakakosha inhibitory effect.

mufananidzo005

Neutralizing chiitiko chevaccinator's serum inopesana neiyo yekutanga coronavirus uye akasiyana mutant strains kusanganisira iyo Delta strain |Reference [1]

Mukupindura kune maviri makuru ehutachiona akasiyana, Delta neAlpha, zvichikonzera chiratidzo cheCCIDID-19, kuti jekiseni inoshanda sei inogona kudzivirira, Dhipatimendi rePublic Health yeUnited Kingdom yakazivisa mhedzisiro yeongororo yepasirese mukupera kwaMay.

Iyo data inoratidza kuti kunyangwe iyo yekudzivirira ine simba rekudzivirira mhedzisiro paDelta dhizaichienzaniswa neiyo Alpha strain, inogona kuramba yakanyanya kuderedza njodzi yezviratidzo zvekorona nyowani.Yakazadzwa zvizere nemajekiseni maviri eMRNA vaccine, iyo inodzivirira inogona kusvika 88%;zvakasiyana, iyo yekudzivirira mhedzisiro yeAlpha ndeye 93%.

Ongororo iyi yakawana zvakare kuti kana pfuti imwe chete yejekiseni ikapihwa, kugona kudzivirira mutant strain kunodzikira zvakanyanya.Vhiki nhatu mushure memushonga wekutanga wejekiseni, iwo majekiseni maviri anogona chete kuderedza njodzi yezviratidzo zvekorona nyowani inokonzerwa neDelta musiyano we 33%, uye njodzi yeAlpha ne50%, ese ari maviri akadzikira pane ekudzivirira anogadzirwa mushure mekudzivirira kwakazara kwe2 dosi.

mufananidzo006Kudzivirira kushanda kwemishonga miviri mitsva yekorona kubva kuB.1.617.2 uye B.1.1.7 mutant strains |References [8]

Gwaro rezvokurapa rine chiremera "The Lancet" rakaburitsa imwe data kubva kuDhipatimendi reHutano hweHurumende reUnited Kingdom muna Chikumi 15, zvichiratidza kutia akazara maviri-kupfura mutsva korona yekudzivirira (kusanganisira akawanda ekudzivirira marudzi) inogona kuderedza zvakanyanya njodzi yekuiswa muchipatara.Ongororo iyi yakaratidzawo kuti mazuva angangoita makumi maviri nemasere mushure mejekiseni rekutanga, kudzivirira kwejekiseni kunoonekwa.

Kubva pane humbowo hwakati wandei, WHO nenyanzvi dzinobva kunyika dzakawanda dzakaramba dzichisimbisa izvozvozvakakosha kupedzisa chirongwa chese chekudzivirira chekudzivirira chinoda maviri (kana anopfuura) madosi, kunyanya kudzivirira kweCOVID-19 yakaoma uye kufa.

Kuenderera mberi kushanduka, kuchengetedzwa kunoenderera

Muvanhu vane mitengo yakaderera yekudzivirira, iyo Delta musiyano ine mukana wekupararira nekukurumidza.Ongororo yakavakirwa pakuteedzana data yeanosvika zviuru makumi maviri emasampuli kubva muna Kubvumbi yakawana izvozvomunzvimbo dzine huwandu hwevagari vanopedza chirongwa chekudzivirira chese chiri pasi pe30%, kupararira kweDelta variant strain kwakakwira zvakanyanya kupfuura kune dzimwe nzvimbo uko chiyero chekudzivirira chinodarika chikamu ichi.

Zvimwe zvidzidzo zvakawanawo kuti misiyano mikuru mumitengo yekudzivirira inogona kunge yakakonzera mutsauko muhuwandu hwezviitiko uye kuchipatara kunokonzerwa neiyo Delta musiyano mumatunhu akasiyana.

Sezvo coronavirus nyowani iri kuramba ichipararira pasirese, shanduko yehutachiona haidzivisike.Pamusoro peDelta mutant strain ine simba rakasimba rekutapurirana kusvika parizvino,masayendisiti arikutarisisa mamwe ma mutant strains, kusanganisira mamwe manomwe emutant strains akanyorwa se "Mutant Strains To Be Observed" (VOI) neWorld Health Organisation.

mufananidzo007

Nzira yekudzivirira sei utachiona hutsva hwekoronavirus hunogara huchichinja, Dr. Michael Ryan veWHO vanotenda kuti: “Kuchinja kwemajini kunogona kukonzera chinjo muhunhu hweutachiona, hwakadai sokunyanya kutapurira vanhu, kugara mumadonhwe kwenguva refu, uye kusanyanya kuratidzwa.Ichakonzera hutachiona, nezvimwewo.Asi mavhairasi aya anochinja haachinje zvatichaita, anotiyeuchidza kutora matanho ekudzivirira anogona kuitwa, uye kutora matanho akasimba, kusanganisira kupfeka masiki, kuderedza kuungana, nezvimwe.

Muchidimbu, kunyangwe iyo Delta mutant strain yakawedzera hutachiona, yakapfupisa nguva yekufukidzira, uye munhu ane hutachiona anowedzera kurwara, asi haadzivirirwe zvachose.Kunyangwe ari majekiseni sezvinodiwa, kana zviyero zvakaita semasiki uye kuzviparadzanisa nevamwe, zvinotarisirwa kudzora zvakanaka.Mukukonana neDelta mutant, danho iri riri mumaoko edu.

References

[1] Kutsvaga SARS-CoV-2 akasiyana Akadzorerwa June 24, 2021 kubva https://www.who.int/en/activities/tracking-SARS-CoV-2-variants/

[2] Delta coronavirus musiyano: masayendisiti anonamira maitiro, Yakadzorerwa June 24, 2021, kubva https://www.nature.com/articles/d41586-021-01696-3

[3] Misiyano yeCoronavirus iri kupararira muIndia - izvo masayendisiti anoziva kusvika zvino.Yakadzorerwa May 11, 2021, kubva https://www.nature.com/articles/d41586-021-01274-7

[4] SARS-CoV-2 mutsauko wekunetseka uye akasiyana ari kuferefetwa muEngland.Yakadzorerwa Kubvumbi 25, 2021, kubva, https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/979818/Variants_of_Concern_VOC_Technical_Briefing_9_England.pdf

[5] Delta Yakasiyana yeCoronavirus Inogona Kutonga muUS, mukati memavhiki.Yakadzorerwa June 23, kubva https://www.npr.org/sections/health-shots/2021/06/22/1008859705/delta-variant-coronavirus-unvaccinated-us-covid-surge

[6] Yakadzorerwa June 26, 2021 kubva https://www.thepaper.cn/newsDetail_forward_13296668

[7] Yakabudiswa nechiremera chekubatana kwekudzivirira uye kutonga nzira yeHurumende Council (Chikumi 11, 2021) Yakadzorerwa June 26, 2021 kubva ku http://www.gov.cn/xinwen/gwylflkjz160/index.htm

[8] Kushanda kwemishonga yekudzivirira yeCOVID-19 ichipikisa B.1.617.2 Variant.Yakadzorerwa Chivabvu 23, 2021, kubva https://khub.net/documents/135939561/430986542/Kubudirira+kwe+COVID-19+vaccines+against+the+B.1.617.2+variant.pdf/204c12-f3-67a4-e4a4 2


Nguva yekutumira: Jul-23-2021