A new hybrid COVID variant, XE, might be the most infectious strain yet, according to preliminary research, but studies are underway to determine the exact contagiousness of the variant.
Along with the XE variant, UK's Health Security Agency is monitoring two other recombinants: XD and XF, which consist of genetic material from the Delta and BA.1 strains.
"This particular recombinant, XE, has shown a variable growth rate and we cannot yet confirm whether it has a true growth advantage," stated Susan Hopkins, chief medical advisor for UKHSA. Recombinant variants themselves, however, are not out of the ordinary, according to health officials.
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