Tojsiab
Kev tiv thaiv kab mob omicron tus kab mob coronavirus variant ploj mus sai sai tom qab koob thib ob thiab thib peb ntawm Pfizer thiab BioNTech's Covid-19 tshuaj tiv thaiv, raws li cov phooj ywg tshuaj xyuas kev tshawb fawb luam tawm hauv JAMA Network Qhib nyob rau hnub Friday, qhov kev tshawb pom uas tuaj yeem txhawb nqa kev txhaj tshuaj tiv thaiv ntxiv rau cov neeg tsis muaj zog vim qhov sib txawv ua rau muaj kev cuam tshuam rau cov xwm txheej tshiab thoob plaws lub tebchaws.
Cov tshuaj tiv thaiv kab mob yog "ntev" tom qab koob thib ob thiab thib peb Pfizer, cov kws tshawb fawb pom.
AFP ntawm Getty Dluab
Cov Lus Tseem Ceeb
Qib ntawm omicron-tshwj xeeb "neutralizing" cov tshuaj tiv thaiv-uas tuaj yeem tsom tus kab mob thiab txwv tsis pub nws rov ua dua - poob sai sai tom qab koob thib ob thiab thib peb ntawm Pfizer txhaj tshuaj, raws li kev tshawb fawb Danish ntawm 128 tus neeg uas tau txais ob lossis peb koob.
Cov tshuaj tiv thaiv kab mob, uas cuam tshuam nrog kev tiv thaiv kab mob thiab kab mob, poob hauv lub lis piam ntawm kev txhaj tshuaj thiab qis dua qib ntawm cov tshuaj tiv thaiv tshwj xeeb rau tus thawj thiab tus kab mob delta tus kab mob sib txawv, cov kws tshawb fawb tau hais.
Piv nrog rau cov thawj thiab cov delta variants, qhov feem pua ntawm omicron-cov tshuaj tiv thaiv tshwj xeeb tau kuaj pom hauv cov neeg koom nrog cov ntshav poob "sai" los ntawm 76% plaub lub lis piam tom qab txhaj tshuaj thib ob rau 53% ntawm lub lis piam yim txog 10 thiab 19% ntawm lub lis piam 12 txog 14, cov kws tshawb fawb pom.
Omicron cov tshuaj tiv thaiv tshwj xeeb tau nce tom qab koob thib peb - ze li 21-fold ntawm lub lis piam peb thiab ze li ntawm 8-fold ntawm lub lim tiam plaub, piv rau plaub lub lis piam tom qab koob thib ob - thiab kev txhaj tshuaj tau tsim cov lus teb rau cov neeg feem coob tsawg kawg yim. lub lim tiam, cov kws tshawb fawb tau hais.
Txawm li cas los xij, cov tshuaj tiv thaiv kab mob tau pib poob qis thaum ntxov li peb lub lis piam tom qab txhaj tshuaj tiv thaiv kab mob, poob 4.9-fold rau thawj qhov sib txawv, 5.6-fold rau delta thiab 5.4-fold rau omicron ntawm lub lis piam peb thiab yim.
Cov lus teb "ntev" tshuaj tiv thaiv tom qab koob tshuaj ob thiab peb txhais tau tias kev txhaj tshuaj ntxiv yuav xav tau los tawm tsam qhov sib txawv, tshwj xeeb ntawm cov neeg laus, cov kws tshawb fawb tau hais.
Tus Keeb Kwm Tseem Ceeb
Cov kws tshaj lij thiab cov kws tswj xyuas dav dav lees paub cov txiaj ntsig ntawm koob tshuaj thib peb txhawm rau txhawm rau txhawm rau tiv thaiv kev mob hnyav thiab tuag. Muaj tsawg kev pom zoo tshaj seb puas xav tau txhaj tshuaj ntxiv tshaj qhov ntawd thiab cov lus nug tshaj seb qhov kev txhawb zog ntau npaum li cas yuav ua tau. Neutralizing cov tshuaj tiv thaiv yog qhov tseem ceeb ntawm kev tshawb fawb soj ntsuam cov tshuaj tiv thaiv-lawv yooj yim dua rau kev kawm-tab sis lawv tsis yog ib feem ntawm lub cev tiv thaiv kab mob tiv thaiv tib neeg tiv thaiv kab mob. Lwm qhov chaw ntawm lub cev tiv thaiv kab mob, xws li T cell, tej zaum yuav tsis tshua muaj txiaj ntsig ntawm kev tiv thaiv kab mob tab sis lawv muaj zog dua li cov tshuaj tiv thaiv thiab tuaj yeem ua tau txo yuav muaj mob hnyav yog tias kis tau. Ntau cov kws txawj ntseeg Cov cuab yeej tom kawg no yog lub luag haujlwm tseem ceeb ntawm kev txhaj tshuaj tiv thaiv, tsis tiv thaiv kab mob, thiab cov ntaub ntawv qhia tias lawv muaj kev tiv thaiv ntau dua, suav nrog kev tiv thaiv omicron.
ntxiv nyeem ntawv
Koj Puas Xav Tau Kev Txhaj Tshuaj Tiv Thaiv Thib Ob? Cov kws tshaj lij raug faib. (Forbes)
Tau qhov twg los: https://www.forbes.com/sites/roberthart/2022/05/13/pfizers-covid-vaccine-protection-against-omicron-fades-just-weeks-after-second-and-third-doses- kawm-nrhiav/