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All the coronavirus variants identified - including Nigerian, South African and Liverpool

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dailyrecord.co.uk

coronavirus are constantly being researched and discovered, with some spreading faster than others. Different strains happen when changes build up in the genetic code of the virus before the new version is then passed from person to person.

Most of the time the changes are so small that they have little impact on the way the virus is spread among the population. Every so often the deadly bug mutates in a way makes it spread more quickly, sparking concern about the way the virus might behave in response to factors such as a vaccine.

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