Cov tshuaj tiv thaiv Pfizer-BioNTech tshiab muaj txiaj ntsig zoo dua li qhov qub, kev tshawb fawb qhia

Tojsiab

Pfizer-BioNTech cov tshuaj tiv thaiv kab mob Covid-19 bivalent tshiab - uas yog lub hom phiaj ntawm thawj hom kab mob thiab qee qhov Omicron subvariants - muab kev tiv thaiv ntau dua rau tus kab mob thiab nws cov omicron sib txawv dua li nws cov tshuaj tiv thaiv thawj zaug, raws li ib tug txoj kev tshawb no tso tawm hnub Friday, raws li ntau dua 35 lab tus tib neeg hauv Asmeskas txij li tau txais qhov hloov kho tshiab.

Cov Lus Tseem Ceeb

Ib koob tshuaj tiv thaiv kab mob Omicron BA.4- thiab BA.5-adapted Covid-19 tshuaj tiv thaiv yog 11 lub sij hawm zoo dua tiv thaiv BA.4.6 subvariant, ze li xya zaus zoo dua tawm tsam BA.2.75.2 subvariant, cuaj zaus ua tau zoo. tawm tsam BQ.1.1 subvariant thiab yuav luag tsib zaug zoo dua tiv thaiv XBB.1 subvariant dua li cov tshuaj tiv thaiv thawj.

Cov txiaj ntsig tau ua tiav ua ntej cov ntaub ntawv los ntawm Pfizer qhia qhov kev txhaj tshuaj tshiab yog 13 npaug ntau dua tawm tsam BA.4 thiab BA.5 subvariants - feem ntau cov qauv ntawm omicron variant - hauv cov neeg muaj hnub nyoog 55 xyoos.

Tus tshiab booster yog nyuam qhuav pom zoo los ntawm FDA rau kev siv xwm txheej ceev rau cov menyuam yaus hnub nyoog 5 xyoos lossis laus dua.

Raws li Lub Chaw Tiv Thaiv Kab Mob thiab Tiv Thaiv, tshaj 35 lab cov neeg muaj hnub nyoog 5 xyoos thiab siab dua - lossis 11.3% ntawm Asmeskas cov pej xeem - tau txais kev hloov kho cov koob tshuaj bivalent.

Kev Nkag Siab Hais

"Cov tshuaj tiv thaiv Covid-19, suav nrog cov tshuaj tiv thaiv, txuas ntxiv cawm neeg suav tsis txheeb thiab tiv thaiv qhov tshwm sim loj tshaj plaws-kev kho mob thiab kev tuag-ntawm Covid-19," FDA Tus Thawj Saib Xyuas Robert Califf tau hais hauv FDA qhov kev pom zoo ntawm cov tshuaj tiv thaiv bivalent, raws li ib tug tso tawm.

Tsis meej

Cov xwm txheej txhua lub lim tiam ntawm Covid-19 txuas ntxiv txo qis, raws li CDC, uas tau tshaj tawm xya-hnub nruab nrab ntawm 39,000 tus neeg mob tshiab txij li lub Kaum Ib Hlis 2. Tus nqi ntawm cov tshuaj tiv thaiv kuj tau poob qis-txawm tias 68.5% ntawm Teb Chaws Asmeskas tau txais kev txhaj tshuaj tag nrho-raws li 49.1% ntawm cov neeg tsim nyog tau txais kev txhawb nqa muaj tseem tau txais ib qho.

Tus Keeb Kwm Tseem Ceeb

Ob qho tshuaj tiv thaiv Pfizer-BioNTech thiab Moderna bivalent Covid-19 tau tso cai siv los ua ib qho tshuaj tiv thaiv kab mob rau cov neeg muaj hnub nyoog 5 thiab 6 xyoo, raws li. Cov tshuaj tiv thaiv bivalent, uas raug xa mus los ntawm FDA raws li cov tshuaj tiv thaiv "hloov tshiab", yog kev sib xyaw ua ke ntawm tus kab mob thawj zaug nrog rau cov khoom sib txawv ntawm omicron variant los tawm tsam txhua qhov ua tau ntawm tus kab mob. Pfizer tau sau tseg qee cov tsos mob tshwm sim los ntawm cov tshuaj tiv thaiv bivalent, suav nrog kev mob pob qij txha, qaug zog thiab lwm yam kev tsis haum tshuaj.

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