What makes a virus like Covid-19 mutate?

We talk viral evolution, vaccine quality control, and why we usually sneeze more than once!
29 September 2021

CORONAVIRUS_DNA

Green coronavirus particles around a strand of DNA.

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What makes a virus mutate? Why does bladder control become so much harder to achieve the closer I get to a toilet? How does sneezing work? How are vaccines quality controlled and assured around the world? What happens to Covid-19 vaccines if the cold-chain is broken? Dr Chris and Africa Melane have the answers...

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