Scientists have identified a new Covid-19 lineage responsible for a number of recent Covid cases in South Africa, Australia and Canada that displays “many of the defining mutations of B.1.1.5…
on information sharing platform GitHub. The platform is widely used by top researchers to share data and information related to Covid-19.
As a result of those similarities and differences with the original Omicron, which was first identified about two weeks ago, the new sequence is being called BA.2, while the original variant has been dubbed BA.1. The new lineage is being called “stealth” Omicron by some scientists and news outlets because, while PCR tests do identify it as Covid, the mutations on BA.2Why does that matter? It makes tracking the spread of Omicron more difficult at a time when surveillance of the new variant is critical to understanding it. Only seven cases of BA.2 have been identified thus far,Per the Guardian: “To have two variants, BA.1 and BA.
It is also unclear exactly how or if the unique mutations in BA.2 will impact its transmissibility and virulence.
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