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As of 7 December 2021 it was known that BA.2, unlike BA.1, lacks the characteristic S-gene target failure (SGTF) causing deletion (Δ69-70), by which many qPCR tests have been able to rapidly detect a case as an Omicron (or Alpha) variant, from the previously dominant Delta variant.
BA.2.86 is notable for having more than thirty mutations on its spike protein relative to BA.2. [1] The subvariant , which was first detected in a sample from 24 July 2023, [ 2 ] is of concern due to it having made an evolutionary jump on par with the evolutionary jump that the original Omicron variant had made relative to Wuhan-Hu-1, the ...
BA.2.86 features more than 30 mutations compared to omicron XBB.1.5, which was the dominant variant for most of 2023 — it's also the strain targeted in the updated COVID-19 vaccine.
Omicron (BA.1, EG.5, BA.2.86) Omicron was the predominant variant circulating in the U.S. between late 2021 and 2023. It was first identified in late 2021 in Botswana and South Africa and quickly ...
As coronavirus case numbers in the U.S. show early signs of tapering, scientists are keeping a watchful eye on a newly identified version of the omicron What to know about BA.2, the newest COVID ...
The World Health Organization hasn't yet classified BA.2 as a "variant of concern," but it said its characteristics, "including immune escape properties and virulence, should be prioritized ...
A sub-variant of the highly transmissible Omicron version of coronavirus known as BA.2 is now dominant worldwide, prompting surges in many countries in Europe and Asia and raising concern over the ...
So BA.2 is a subvariant, or sublineage, of Omicron that is now “replacing the BA.1 variant, which was responsible for the surge of cases this winter,” explains Sobhanie.