A new hybrid COVID-19 variant dubbed XE has sparked fresh concerns recently.
recombination is both more likely and more easily detectable than during earlier stages. The global Omicron wave has seen a rapid increase in COVID prevalence, which increases the chances of co-infection and gives the virus more chances to recombine.
But now there are several genomically distinct variants infecting people in the same area, making recombinant genomes a lot easier to spot among the millions of genomes generated to date. Viral recombination will likely play an important role in the ongoing evolution of SARS-CoV-2.Recently there have been several recombinant SARS-CoV-2 variants identified, named XA, XB, XC etc., right through to XS. Some of these variants were sequenced as early as mid-2020.
A few of these recombinants are being watched closely. They include XD and XF, which consist of genetic material from Delta and the BA.1 Omicron subvariant. At this point, there's no need to be overly concerned about XE. But we need to continue surveillance of SARS-CoV-2 on a global scale to spot new variants and understand the risks they might pose.
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