Tag Archives: Covid-19 Mutations

Covid-19: ‘Why Variants Are Spreading Faster’

As highly transmissible coronavirus variants sweep across the world, scientists are racing to understand why these new versions of the virus are spreading faster, and what this could mean for vaccine efforts. New research says the key may be the spike protein, which gives the coronavirus its unmistakable shape. Illustration: Nick Collingwood/WSJ

Covid-19: Race To Update Vaccines For Variants

Just two months ago, the incredible performance of new vaccines from Moderna and Pfizer had people cheering for an imminent end to the pandemic. But an onslaught of fast-spreading and potentially dangerous mutations of the virus changed that. 

 So now, even as pharma companies ramp up production in the early stages of a massive rollout, they are racing to retool their vaccine strategies. Robert Langreth reports that booster shots could give drugmakers a lucrative new revenue stream.

Covid-19: Understanding The New Variants & New Vaccines Effectiveness

Researchers are scrambling to understand the biology of new coronavirus variants and the impact they might have on vaccine efficacy.

Around the world, concern is growing about the impact that new, faster-spreading variants of the SARS-CoV-2 virus will have on the pandemic.

In this episode of Coronapod, we discuss what these variants are, and the best way to respond to them, in the face of increasing evidence that some can evade the immunity produced by vaccination or previous infection.

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Covid-19 Variants: ‘What You Need To Know’ (Video)

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.