Kesi za maambukizo ya pamoja na lahaja mbili ziliripotiwa hapo awali. Hakuna mengi yalijulikana kuhusu virusi vinavyotoa virusi vya ujumuishaji upya na jenomu mseto. Tafiti mbili za hivi majuzi zimeripoti visa vya mchanganyiko wa vinasaba kati ya lahaja za SARS-CoV-2 Denta & Omicron. Recombinant, inayoitwa Deltamicron, ilikuwa na sifa za lahaja zote mbili.
Neno la 'Deltacron' lilionekana mapema mwaka huu1 to denote COVID-19 cases of co-infection of people with the different variants of SARS-Cov-2 variants, e.g. delta and omicron. Delmicron or Deltacron referred to the infection caused by a combination of “two variants of the same strain of virus, SARS CoV-2″, and were not said to be different “Matatizo".
However, cases of genetic recombination between two different strains of SARS-cov-2 have been reported recently. On 08 March 2022, researchers2 reported three infections in southern France with “Deltamicron” recombinant with hybrid genome that had spike protein from an Omicron variant and the “body” of a Delta variant. The hybrid genome had signature mutations of the two lineages. The recombinant spike could optimise viral binding to the host cell membrane.
Evidences for Delta and omicron recombination has emerged from USA3 as well. This team could identify two independent cases of Delta-Omicron recombinant. In both cases, the 5′-end of the viral genome was from the Delta genome, and the 3′-end from Omicron.
It is suggested that the recombinant viruses are not common nor there is any evidence to suggest that the recombinants with hybrid genomes are more transmissible or virulent than the dominant circulating variants.
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Marejeo:
- Deltacron sio Aina Mpya au Lahaja. Ulaya ya kisayansi. Iliwekwa mnamo 9 Januari 2022. Inapatikana kwa http://scientificeuropean.co.uk/covid-19/deltacron-is-not-a-new-strain-or-variant/
- Colson, P., et al 2022. Utamaduni na utambuzi wa “Deltamicron” SARS-CoV-2 katika kundi la visa vitatu kusini mwa Ufaransa. Chapisha awali medRxiv. Ilichapishwa Machi 08, 2022. DOI: https://doi.org/10.1101/2022.03.03.22271812
- Bolze A., et al 2022. Ushahidi wa maambukizi ya pamoja ya SARS-CoV-2 Delta na Omicron na ujumuishaji upya. Chapisha awali medRxiv. Ilichapishwa Machi 12, 2022. DOI: https://doi.org/10.1101/2022.03.09.22272113
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