Following Omicron, a delta recombinant strain was detected in France in mid-February, with two more Omicron-linked recombinant strains tracked. Of these three strains, two are combinations of Omicron and Delta (different variants), while the third emerged from the mixing of two different Omicron sub-variants (BA.1 and BA.2). A new study has been told that research is going on to understand the effect of these new COVID hybrid variants.
What are the three newly identified recombinant strains?
Describing three different recombinant strains, a study by the UK Health Protection Agency (UKHSA) showed that there are two different combinations of delta and BA.1 XD and XF. The third is XE.
XD is the new name for the French Delta x BA.1 lineage. It contains the spike protein of BA.1 and the rest of the genome of Delta. It currently consists of as many as 10 sequences.
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The XF is a UK Delta x BA.1 Lineage. It consists of the spike and structural proteins from BA.1, but from the delta 5′ of its genome. It currently consists of several tens of sequences.
XE is a large UK BA.1 x BA.2 ancestry. It contains the spike and structural proteins from BA.2, but 5′ of its genome from BA.1. It currently consists of several hundred sequences.
How concerned should you be about these variants?
According to Mint, eminent virologist Tom Peacock explained that recombinants, which contain spikes and structural proteins from the same virus (such as XE or XF), have great potential to act like the original or parental virus.
XD Maybe a little too concerning. It has been found in Germany, the Netherlands and Denmark and contains structural proteins from Delta. If any of these recombinants act very differently than their parent ones, it could be XD.
All these recombinants (including small groups that have not been assigned) should be closely monitored for signs of apparent growth and tried to isolate and mark them where possible, he said in a series of tweets. Should be known
COVID-19 may be a recombinant virus
Studies have shown that recombination itself may be the reason for the emergence of COVID-19. Scientists from the University of Glasgow published a study last month that suggested that an animal at a sea food market in Wuhan could be infected with two coronaviruses at the same time, and that the two viruses reunited. , like Omicron and Delta are doing now.
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