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The invention of a brand new and probably vaccine-resistant Covid variant has involved governments and unnerved markets all over the world. Omicron has prompted the return of border closures and obligatory testing and masks sporting as international locations try and gradual its unfold.
The variety of mutations on its spike protein – the a part of the virus vaccines use to prime the immune system – has involved scientists, however it would take weeks to find out the extent of the risk Omicron poses. The Guardian’s science correspondent Linda Geddes explains
Supply & Picture rights : https://www.theguardian.com/world/video/2021/nov/30/why-omicron-is-the-most-worrying-covid-variant-yet-video-explainer
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