Tus yuam sij rau kev sim tshuaj tiv thaiv sai sai yog sim ua ntej ntawm kev kis tus kab mob COVID-19, qhov tseeb ntau zaus 24 teev sib nrug. VioletaStoimenova / E + ntawm Getty Images

Nathaniel Hafer, UMass Chan Medical School

Raws li lub caij ntuj no pib thiab cov hnub so nyob rau hauv tag nrho viav vias, COVID-19 kev sib kis tau nkag mus rau lwm qhov kev txhawj xeeb. Kev tshwm sim ntawm omicron sib txawv, Nrog rau nce tus kab mob, tau ua rau ntau tus neeg tsis paub meej txog lawv cov phiaj xwm hnub so.

Thaum Lub Kaum Ob Hlis 2, 2021, Thawj Tswj Hwm Joe Biden tau hais txog a series ntawm kev ua los teb rau COVID-19 kev kis thoob qhov txhia chaw, suav nrog kev sim ua hauv tsev COVID-19 sai sai tsim nyog tau txais cov nyiaj rov qab los ntawm kev pov hwm ntiag tug. Nrog rau kev txhaj tshuaj, kev ntsuam xyuas tseem yog ib txoj hauv kev zoo tshaj plaws txhawm rau taug qab thiab txo qis kev sib kis ntawm SARS-CoV-2, tus kab mob uas ua rau COVID-19.

Txawm hais tias qhov kev sim COVID-19 tau dhau los ua ib feem ntawm cov neeg feem coob sib tham txhua hnub, ntau tus neeg tseem muaj lus nug txog qhov txawv nruab nrab ntawm cov tshuaj antigen thiab PCR, suav nrog thaum twg thiab yuav siv lawv li cas.

Kuv yog ib tug laij teb biologist nyob ntawm UMass Chan Medical School. Txij li lub Plaub Hlis 2020, kuv tau ua ib feem ntawm pab pawg ua haujlwm ntawm ib National Institutes of Health-funded program hu ua RADx Tech los pab cov tuam txhab tsim cov kev sim sai sai txhawm rau kuaj pom thaum tus neeg kis tus kab mob COVID-19.

Kev kuaj antigen sai npaum li cas

Ceev ceev antigen kev ntsuam xyuas yog tsim los kuaj xyuas ib feem ntawm cov protein - paub tias yog antigen - ntawm SARS-CoV-2. Ua ntej, koj nqa ib qho qauv ntawm koj lub qhov ntswg los yog qhov ncauj nrog lub swab, raws li qhia. Koj muab cov qauv sib xyaw nrog cov kua uas ua rau tus kab mob sib kis. Tom qab ntawd koj siv cov kua rau hauv ib daim kab xev kuaj uas muaj cov tshuaj tiv thaiv tshwj xeeb rau SARS-CoV-2 pleev xim rau nws hauv kab nyias. Cov tshuaj tiv thaiv yog Y-zoo li cov proteins uas paub thiab khi rau cov khoom txawv teb chaws xws li antigens. Yog tias cov tshuaj tiv thaiv khi rau tus kab mob cov proteins, lossis cov tshuaj tiv thaiv kab mob, cov kab xim muaj xim tshwm rau ntawm daim kab xev kuaj, qhia tias muaj SARS-CoV-2.

Cov kev ntsuam xyuas no yooj yim vim lawv siv tau yooj yim thiab muab cov txiaj ntsig sai, feem ntau nyob hauv txog 15 feeb. Lwm qhov txiaj ntsig yog qhov kev kuaj antigen tuaj yeem pheej yig, nyob ib puag ncig US $ 10- $ 15 rau ib qho kev xeem. Hauv qhov sib piv, PCR kev xeem feem ntau xav tau cov cuab yeej kuaj thiab cov kws tshaj lij, siv sijhawm 12 teev rau ob peb hnub kom tau txais cov txiaj ntsig thiab raug nqi $ 100 lossis ntau dua, txawm tias muaj ntau txoj hauv kev kom tau txais cov kev xeem no dawb xwb.

Hauv nws daim ntawv tshaj tawm, Thawj Tswj Hwm Biden kuj tau tham txog cov phiaj xwm los faib 50 lab kuaj dawb rau cov neeg saib xyuas kev noj qab haus huv hauv zej zog rau cov neeg tsis muaj ntawv pov hwm. Cov tib neeg yuav tsum tshawb xyuas lawv cov chaw tshaj xov xwm hauv zos kom paub txog thaum twg muaj kev sim dawb sai sai. Hauv Colorado, muaj kev kuaj dawb sai sai cov tsev neeg uas muaj menyuam hnub nyoog kawm ntawv rau lub hlis. Npaj kom ua sai sai: Thaum lub Kaum Ib Hlis lig, 100,000 tus neeg tau kos npe hauv tsawg dua 24 teev rau kuaj dawb antigen COVID hauv New Hampshire.

Cov tib neeg puag ntawm ib sab ntawm daim ntawv kuaj mob sai sai ntawm COVID-19 ntawm Los Angeles International Airport.
Los Angeles International Tshav Dav Hlau tab tom muab kev kuaj dawb ceev ceev COVID-19 rau cov neeg tuaj ncig thoob ntiaj teb tuaj. Mario Tama / Getty Images Xov Xwm ntawm Getty Images

Raws li thaum lub Kaum Ob Hlis 2021, lub Food and Drug Administration tau tso cai txog kaum ob qhov kev sim tshuaj tua kab mob sai sai rau SARS-CoV-2, uas txhais tau tias cov kev sim no ua tau raws li cov qauv kev ua tau zoo thiab raug.

Thaum twg yuav siv cov kev ntsuam xyuas sai

Yog tias koj muaj cov tsos mob ntawm COVID-19, tsis hais seb koj puas tau txhaj tshuaj, koj yuav tsum mus kuaj tam sim ntawd nrog rau PCR lossis antigen test.

SARS-CoV-2 tuaj yeem kis tau yooj yim heev, txawm tias koj tsis muaj tsos mob. Qhov koj tuaj yeem txiav txim tau sai dua yog tias koj muaj COVID-19, sai dua koj tuaj yeem cais koj tus kheej, uas pab tiv thaiv kev kis mus rau lwm tus. Kev kuaj thaum ntxov kuj tseem ceeb heev vim tias cov tshuaj tshiab nyiam cov los ntawm Merck thiab Pfizer zoo tshaj plaws yog muab thaum ntxov ntawm tus kab mob, sai tom qab cov tsos mob tshwm sim.

Yog tias koj tau txais kev kuaj tsis zoo antigen tab sis tseem muaj mob, nws muaj peev xwm tias koj tau txais kev kuaj tsis zoo. Cais koj tus kheej kom deb ntawm lwm tus thiab tiv tauj koj tus kws kho mob los tham txog koj cov tsos mob. Yog tias koj tau txais kev kuaj pom zoo, koj yuav tsum cais koj tus kheej hauv tsev thiab tiv tauj koj tus kws kho mob sai li sai tau.

Yog tias koj tsis muaj tsos mob tab sis tau nyob ze nrog ib tus neeg muaj COVID-19, yuav ua li cas nyob ntawm koj qhov kev txhaj tshuaj. Yog tias koj tau txhaj tshuaj tiv thaiv tag nrho, CDC tam sim no pom zoo hais tias koj tos tsib mus rau xya hnub tom qab koj kis tau tus kab mob thiab ces mus kuaj PCR los yog ceev antigen kuaj. Yog tias koj tsis tau txhaj tshuaj tiv thaiv tag nrho, mus kuaj tam sim ntawd. Yog tias koj tsis muaj cov tsos mob tshwm sim, koj yuav tsum tau rov kuaj dua tsib mus rau xya hnub tom qab koj raug.

Zoo li ntau tus kab mob ua pa, nws yuav siv sij hawm ntau hnub rau SARS-CoV-2 los tsim hauv koj lub cev tom qab kis tau. Thaum lub sij hawm ntxov ntawm tus kab mob no, tus nqi ntawm cov kab mob viral protein kuj tsawg, thiab kev sim sai yuav tsis ntes koj tus kab mob. Qhov no yog vim li cas kev ntsuam xyuas serial Nyob rau ntau hnub, nrog tsawg kawg 24 teev ntawm txhua qhov kev sim, raug pom zoo rau ntau qhov kev kuaj antigen. Kev kuaj tshuaj antigen nrawm feem ntau yog qhov tseeb thaum tus neeg kis tau tus mob, vim hais tias yog thaum tus kab mob ntau tshaj plaws nyob rau hauv lub ntsws.

Cov kev tshawb fawb tau pom qhov kev kuaj antigen serial - feem ntau yog ob mus rau peb qhov kev sim hauv ib lub lis piam - yog sib npaug nrog ib qho kev sim PCR. Nco ntsoov tias qhov kev sim tsuas yog ib daim duab ntawm koj qhov xwm txheej SARS-CoV-2 thaum lub sijhawm kuaj. Nws yog qhov ua tau, tshwj xeeb tshaj yog nrog kev kuaj antigen, txhawm rau kuaj qhov tsis zoo thaum lub sijhawm ntxov ntawm kev kis kab mob.

Lub neej yav tom ntej rau kev kuaj COVID-19 hauv tsev

Txawm hais tias txhua yam uas peb cov kws tshawb fawb tau kawm, tseem muaj ntau ntxiv kom nkag siab txog txoj hauv kev zoo tshaj plaws los siv cov kev ntsuam xyuas sai. Peb pab neeg tab tom ua ntau qhov kev tshawb fawb los ua kom tiav cov qhov khoob no.

Kaw qhov kev kuaj mob sai sai ntawm COVID-19.
CDC pom zoo kom cov neeg txhaj tshuaj tiv thaiv tag nrho tos tsib mus rau xya hnub tom qab kis tus kab mob COVID-19 ua ntej tau txais PCR lossis kuaj tshuaj tiv thaiv sai. Cov uas tsis tau txhaj tshuaj tag yuav tsum tau kuaj tam sim ntawd. lupmotion/iStock/Getty Images Plus ntawm Getty Images

Ib lo lus nug uas peb tab tom kawm nrog ib txoj haujlwm hu ua NPAUM COVID-19 yog li cas tib neeg siv cov kev sim hauv tsev thaum lawv qhov kev pheej hmoo kis tus kab mob tsawg dua piv rau siab. Piv txwv li, ib tus neeg uas hnav lub npog ntsej muag sab hauv tsev thiab tsis noj mov hauv khw noj mov yuav suav hais tias muaj kev pheej hmoo tsawg, thaum ib tus neeg uas tsis tau txhaj tshuaj tiv thaiv thiab sib sau ua ke nrog ntau tus neeg tsis muaj qhov ncauj qhov ntswg yog suav tias muaj kev pheej hmoo siab. Peb kuj xav paub seb tib neeg puas yuav ua raws li kev sim ntsuas thaum lawv raug, thiab seb lawv puas yuav qhia lawv cov txiaj ntsig hauv tsev nrog lawv lub chaw saib xyuas kev noj qab haus huv hauv zos.

Lwm lo lus nug tseem ceeb uas peb pab neeg tab tom kawm yog: Yuav ua li cas kuaj antigen piv nrog PCR kuaj thaum nws los kuaj pom COVID-19 hauv cov neeg uas zoo tab sis tsis muaj tsos mob? Ib txoj kev kawm txawv teb chaws hu ua Kuaj Peb Hauv Tsev tab tom tsim cov ntaub ntawv tseem ceeb uas yuav pab peb teb cov lus nug no hauv ob peb lub hlis tom ntej.

Kev sim tshuaj tiv thaiv sai sai yog ib qho cuab yeej txais tos hauv zej zog kev tawm tsam tiv thaiv COVID-19 kis thoob qhov txhia chaw. Thaum siv kom raug thiab ua ke nrog lwm cov cuab yeej xws li txhaj tshuaj tiv thaiv, hnav lub npog ntsej muag thiab kev tu cev zoo, cov kev ua no tuaj yeem pab txo qis kev kis tus kabmob SARS-CoV-2 lub caij so no.

[Zoo li qhov koj tau nyeem? Xav tau ntau? Sau npe rau Kev Sib Tham ntawm cov ntawv xov xwm txhua hnub.]

Nathaniel Hafer, Assistant Professor ntawm Molecular Medicine, UMass Chan Medical School

Tsab ntawv xov xwm no tau muab tshaj tawm los ntawm lub sib tham raws li Tsab Ntawv Tso Cai Muab Tso Cai. Nyeem qhov thawj tsab xov xwm.