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Coronavirus variants: what viral mutants mean for the pandemic

As COVID variants cause growing concern, we look to the science and ask what you need to know

As the global COVID-19 pandemic continues, viral variants have become the latest concern. But variants are complicated. Each one is made up of a collection of mutations, all of which have the potential to change the SARS-CoV-2 virus in unexpected ways.

So what do scientists mean when they talk about variants and what might this mean for the future of the pandemic?

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