Covid variant: The place do new Covid 19 variants come from?

There are lots of 1000’s of various variations, or variants, of Covid circulating together with the Kent variant, Brazil variant and South African variant.

The Kent variant is now essentially the most generally discovered pressure 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.

However the place are these variants coming from? What are these new variants? And why do viruses mutate within the first place?

Well being correspondent Laura Foster explains.

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