What is a virus variant? Covid-19 explained

Описание: As COVID-19 crossed borders and took root around the world, it wasn’t a matter of IF the virus causing it would mutate — it was when. But how do variants come about, and how do we know which ones to worry about? This video explains.

0:00 Why do we have variants?
0:13 How viruses replicate (and are they alive?)
0:46 How Sars-Cov-2 replicates
1:06 Virus mutations
1:44 The extraordinary effort to track coronavirus mutations
3:36 The Omicron variant
4:12 Vaccines and variants

Interested to know more about how we know what we know about Covid-19? Read our in-depth feature on Professor Sharon Peacock and her fellow variant hunters at COG-UK:   / the-covid-19-variant-hunters-keeping-the-v...  

More in depth Covid-19 features:   / covid-19-stories-from-the  

Prof Peacock's blog on her work with COG-UK https://www.ukri.org/blog/genomic-sur...

Explainer on the COG-UK blog about common terminology used by virologists: https://www.cogconsortium.uk/what-do-...

News from COG-UK https://www.cogconsortium.uk/
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