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What are the new coronavirus variants and how do we monitor them? – podcast – The Guardian

Ian Sample finds out about new coronavirus variants, and how genetic mutations of Sars-CoV-2 are monitored and analysed

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Over the course of the pandemic, scientists have been monitoring emerging genetic changes to Sars-Cov-2. Mutations occur naturally as the virus replicates but if they confer an advantage like being more transmissible that variant of the virus may go on to proliferate. This was the case with the UK or B117 variant, which is about 50% more contagious and is rapidly spreading around the country. So how does genetic surveillance of the virus work? And what do we know about the new variants? Ian Sample…

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