“Herd immunity against COVID”

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印刷电路板、玻璃纤维、玻璃纤维、玻璃纤维(世卫组织) director-generaltedrosadhanomghebreyesusattendinganonlinepressconferenceheldingeneva，Showsworldhealthization (世卫组织) Director

thechiefoftheworldhealthorganization (世卫组织) onmondaytermedherdimmunityagainstcovid-19 Scientificalyandethicalyproblematic

WHO director-Generaltedrosadhanomghebreyesussaidthatherdimmunityisaconceptusedforvaccination， inwhichapopulationcanbeprotectedfromacertainvirusifathresholdofvaccinationisreached。

玩for example，然后按一下， herdimmunityagainstmeaslesrequiresabout 95 percentofapopulationtobevaccinated.theremainingfivepercentwillbeprotectedbythefact ttted thosewhoarevaccinated.forpolio，the threshold is about 80 percent，he said。

我做的是HDIM munityisachieved Byprotecting People Fromavirus，不出口到IT，he said，Addingthatithas Neverbenuse Dasstrates

AwomanwearingamaskWalkSinthestreetofnice、southern france、sept. 6、(按照片排序)

asfortheongoingcovid-19 pandemic，henotedthattheworldstilldoesn ' tknowenoughaboutimmunitytocovid-19，includinghowstrongooovid-19，英特尔中小企业科技 orhowitdiffersfordifferentpeople、letalonesomeexamplesofpeoplebeinginfectedforasecondtime.wehavesomeclues，butwe don ' thavave

additionally，thevastmajorityofpeopleinmostcountriesremainsusceptibletothisvirus，meaningthatlettingtheviruscirculateuncheck

meanwhile，theworldisonlybeginningtounderstandthelong-termhealthimpactsamongpeoplewithcovid-19.and it ' simplyunethicall

Herd immunity、thewhochiefurgedcountriestosticktomeasuresalreadyimplementedandproveneffectivetocontroltransmissionandd suchaspreventingamplifyingevents，protect the vulnerable，as well as empowering，教育和发展组织，识别信息中心 测试和医疗保险，教育和四角联系。

therearenoshortcutsandnosilverbullets.theanswerisacomprehensiveapproach，使用工具箱，he reiterated。

astheworldisstrugglingtocontrolthepandemic，countriesacrosstheglobe-- amongthemeuropeanunionnations，china，Russia theunitits

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