Coronavirus variants: what you need to know

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Guardian News
Published at : 02 Feb 2021
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Last year, Covid-19 spread around the world, sending millions of people into lockdown as health services struggled to cope. The surge in new variants of the virus  has prompted fresh questions and concerns. The Guardian's health editor, Sarah Boseley, explains what we now know about the Covid-19 variants and what they could mean for the future of the pandemic
Science weekly podcast: how and why is the virus mutating?
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