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Covid variants: What occurs when a virus mutates?

by newsking24

Surge testing is being utilized in components of the UK to assist management the unfold of latest variants from Brazil and South Africa.

The Kent variant is now probably the most generally discovered pressure of Covid-19 within the UK and it is extra simply unfold than the primary variant, which arrived in Spring 2020.

Scientists are tweaking the coronavirus vaccines to ensure they proceed to be extremely efficient.

But the place are these variants coming from? And why do viruses mutate?

Health correspondent Laura Foster explains.

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