Cov xwm txheej ntawm kev sib koom ua ke nrog ob qhov sib txawv tau tshaj tawm ua ntej. Tsis paub ntau npaum li cas txog tus kab mob recombination yielding kab mob nrog hybrid genomes. Ob qhov kev tshawb fawb tsis ntev los no qhia txog cov xwm txheej ntawm kev sib txuas ntawm caj ces ntawm SARS-CoV-2 variants Denta & Omicron. Lub recombinant, hu ua Deltamicron, muaj cov yam ntxwv ntawm ob qho tib si variants.
Lub sij hawm 'Deltacron' tshwm sim thaum ntxov xyoo no1 txhawm rau txheeb xyuas qhov xwm txheej ntawm COVID-19 ntawm kev sib koom ua ke ntawm cov neeg uas muaj qhov sib txawv ntawm SARS-Cov-2 variants, xws li delta thiab omicron. Delmicron lossis Deltacron tau xa mus rau tus kab mob tshwm sim los ntawm kev sib xyaw ntawm "ob qhov sib txawv ntawm tib hom kab mob, SARS CoV-2", thiab tsis tau hais tias txawv "hom".
Txawm li cas los xij, cov xwm txheej ntawm genetic recombination ntawm ob hom sib txawv ntawm SARS-Cov-2 tau tshaj tawm tsis ntev los no. Thaum Lub Peb Hlis 08, 2022, cov kws tshawb fawb2 tshaj tawm peb tus kab mob nyob rau sab qab teb Fabkis nrog "Deltamicron" recombinant nrog hybrid genome uas muaj cov protein ntau los ntawm Omicron variant thiab "lub cev" ntawm Delta variant. Cov hybrid genome tau kos npe hloov pauv ntawm ob kab. Cov pob txha recombinant tuaj yeem ua kom zoo dua cov kab mob sib txuas mus rau tus tswv tsev cell membrane.
Cov ntaub ntawv pov thawj rau Delta thiab omicron recombination tau tshwm sim los ntawm teb chaws USA3 ib yam nkaus. Pab neeg no tuaj yeem txheeb xyuas ob qhov xwm txheej ywj pheej ntawm Delta-Omicron recombinant. Hauv ob qho xwm txheej, 5'-kawg ntawm tus kab mob genome yog los ntawm Delta genome, thiab 3′-kawg los ntawm Omicron.
Nws tau pom zoo tias cov kab mob sib kis tsis tau muaj ntau thiab tsis muaj pov thawj los qhia tias cov recombinants nrog hybrid. genomes muaj ntau kis los yog virulent tshaj qhov tseem ceeb circulating variants.
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References:
- Deltacron tsis yog Ib Hom Tshiab lossis Variant. Kev tshawb fawb European. Tshaj tawm Lub Ib Hlis 9, 2022. Muaj nyob ntawm https://www.scientificeuropean.co.uk/covid-19/deltacron-is-not-a-new-strain-or-variant/
- Colson, P., ib. thiab al 2022. Kab lis kev cai thiab kev txheeb xyuas tus kab mob "Deltamicron" SARS-CoV-2 nyob rau hauv peb kis kab mob nyob rau sab qab teb Fabkis. Preprint medRxiv. Tshaj tawm Lub Peb Hlis 08, 2022. DOI: https://doi.org/10.1101/2022.03.03.22271812
- Bolze A., thiab al 2022. Evidence for SARS-CoV-2 Delta and Omicron co-infections and recombination. Preprint medRxiv. Tshaj tawm Lub Peb Hlis 12, 2022. DOI: https://doi.org/10.1101/2022.03.09.22272113
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