焦點關注:Experts slam US attempts to politicize origins of COVID-19
TheUnitedStates"politicizingofeffortstotracetheoriginsofCOVID-19willleadtomoreconfusionandaprotractedblamegame,whichwillultimatelyunderminethescientificprocessofdiscoveringthecauseoftheworstpandemicinacentury,expertssaid.
SaturdaymarkedthethirdanniversaryoftheWorldHealthOrganizationdeclaringCOVID-19aglobalpandemic.WHODirector-GeneralTedrosAdhanomGhebreyesussaidonTwitterthatunderstandingtheoriginsofCOVID-19remainsascientificandmoralimperativetohelptheworldpreventfutureoutbreaks.
Lastweek,thejournalSciencepublishedanarticlelamentingthatsciencehadtakenabackseatatthefirstUScongressionalhearingontheoriginsofthenovelcoronavirusasUSDemocratsandRepublicansengagedinasparringmatchthatshednonewlightontheissue.
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"Itwasverydisappointing,andalmostunbelievablydivorcedfromthescience,"MichaelWorobey,anevolutionarybiologistfromtheUniversityofArizona,toldScience.Hispublishedresearchinthejournal,supportingnatural"zoonotic"originsofthevirus,hasbeenattackedbyproponentsofthe"lab-leaktheory".
Lastmonth,theUSDepartmentofEnergychangeditsviewaboutthelikelycauseofCOVID-19from"undecided"aboutitsoriginstosuspectinga"lableak"behindthepandemic.TheviewwasbasedonanewclassifiedintelligencereportprovidedtotheWhiteHouseandkeymembersoftheUSCongress.
MariaVanKerkhove,WHO"stechnicalleadonCOVID-19,saidonTwitterthatshewasfrustratedthattheUSdidnotshareadditionalinformationwithWHOonitslatestassessmentofthevirus"origins.
"Wedon"tcompletelyhavetheanswerstohowthispandemicbegan,anditremainsabsolutelycriticalthatwecontinuetofocusonthis,"shesaid.
DespitetheDepartmentofEnergyclaimingithadreachedthenewconclusionin"lowconfidence",theshifthasreignitedspeculationandconspiracytheoriesregardingtheoriginsofCOVID-19.
Sincethestartofthepandemic,someUSpoliticianshavefrequentlyallegedthattheviruswasmanufacturedandescapedfromalabinWuhan,Hubeiprovince.Chinafirmlyopposedsuchspeculations.
Lastweek,theUSSenatepassedabillrequiringthedeclassificationofinformationrelatedtoCOVID-19origins.However,thebillstatedthereasonforthedisclosureasUSpoliticians"beliefthatthevirushadleakedfromaChineselab.
DespiteinvestigationsbyWHO,globalscientificcommunitieshaven"treachedadefiniteconclusiononthevirus"origins.Buttheygenerallyleantowardfavoringthespilloverhypothesis,whichsaysthatthevirusjumpedfrombatstohumans.
USDirectorofNationalIntelligenceAvrilHainessaidlastweekthattheintelligencecommunityhasreachedabroadconsensusthatthepandemicwasnottheresultofabioweaponorgeneticengineering,thoughitisstillundecidedonthevirus"origins.
Lastweek,ChineseForeignMinistryspokeswomanMaoNingsaidtheUShasbeen"politicizing,weaponizingandmanipulating"theeffortstotracethevirus"originstosmearandattackChinawithoutprovidingevidence.
Chinahasalwayssupportedandparticipatedinglobalscience-basedoriginstracingofthevirus,whilefirmlyopposingpoliticalmanipulationoftheissueinanyform,shesaid.
ChinesescientistshavesharedvitaldataandmadeinsightfuldiscoverieswithinternationalpeersontheoriginsofCOVID-19.
OneexampleisarecentstudybyMangShifromSunYat-senUniversityinGuangdongprovinceandEdwardHolmesfromtheUniversityofSydney,Australia.Theyidentifiedabatvirus,BtSY2,thatiscloselyrelatedtoSARS-CoV,whichcausedaglobaloutbreakin2003,andSARS-CoV-2,theoriginalCOVID-19strain,suggestingahistoryofrecombinationeventsthathadtakenplace.
Thestudy,publishedonthepreprintrepositorybioRxivinNovember,revealedanunexpectedlyhighfrequencyofco-infectionofvirusesinbats.
Recombinationisamechanismofcoronavirusesthatallowsthemtoexchangegeneticmaterials,leadingtonewgeneticvariantsandtraits.Thisstudyaddstothemountingevidencethatthevirushadoriginatedfromnature.
OnMarch1,ForeignMinistryspokeswomanMaosaidtheUSputtingitsintelligencecommunityinchargeofamatterofscienceisaclearsignthattheissuehasbeenpoliticized.ShesaidtheUSwillnotsucceedinmaligningChinabyrehashingits"lab-leaktheory".
"WeurgetheUStorespectscienceandfacts,stoppoliticizingtheissue,stopitsintelligence-ledandpolitics-drivenoriginstracing,andstopundermining…globalcooperationonscience-basedoriginstracing,"sheadded.
InanothermediabriefingonMarch6,MaosaidthatChinahadcontributedthemosttotheglobalCOVID-19origins-tracingefforts,andcalledontheUStobemoretransparentaboutitssuspectedearlycasesandthesituationsregardingitsbiolabsworldwide.
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