COVID-19 variants FAQ: How did the U.K., South Africa and Brazil variants emerge? Are they more contagious? How does a virus mutate? Could there be a super-variant that evades vaccines?

More and more countries around the world are struggling with a new wave of infections, with an alarming increase in COVID-19 cases. Mostly these new surges are attributed to variants of SARS-CoV-2.

https://theconversation.com/covid-19-variants-faq-how-did-the-u-k-south-africa-and-brazil-variants-emerge-are-they-more-contagious-how-does-a-virus-mutate-could-there-be-a-super-variant-that-evades-vaccines-159032

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