Here’s What We Know About ‘Stealth Omicron’ — The Fast Moving Sub-Lineage Of The Variant ‘Gaining Ground’ In Europe

The omicron coronaviruses variant known as BA.2 is being investigated by the U.K. Health and Security Agency.
The UK is watching a sub variant of omicron.

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The agency told Forbes that it has designated BA.2 a "variant under investigation."

The number of samples identified in the U.K. by January 10 is very low.

The sub-lineage has been dubbed thestealth omicron by some scientists because of its genetic makeup.
In the last week of the year, the percentage of Covid-19 cases in the Danes jumped from 20% to 45%.
The SSI said that early analyses show no differences in hospitalizations compared to the dominant omicron form.
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There is a new variant. The genetic difference between BA.1 and BA.2 is greater than the difference between the original variant and the alpha variant, according to the SSI. The SSI noted that there could be differences in behavior like severity or infectiousness. It said that vaccines have an effect against severe illness.
We don't know what we don't know.

A lot. There is not a lot of data on the behavior of BA.2, including whether it is better able to evade immunity, causes more severe illness or how much more transmissible it might be.
The quote is crucial.
The three sub-lineages of omicron have been described around the world, but BA.1, BA.2 and BA.3 are the ones that account for most omicron cases. In Britain, Norway and Sweden, the SSI noted smaller increases.
Scientists have found a version of Omicron that may be harder to track.

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