COVID-19: WHAT ARE THE NEW VARIANTS & HOW ARE THEY MONITORED (PODCAST)

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 speaks to Dr Jeffrey Barrett, the director of the Covid-19 genomics initiative at the Wellcome Sanger Institute, to find out Coronavirus – latest updates See all our coronavirus coverage.

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