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Re: Coronavirus
https://www.pfizer.com/news/articles/how_do_viruses_mutate_and_what_it_means_for_a_vacc ine
The above link is an amazingly easy to understand explanation of how viruses mutate, comparing also the mutation behaviour of Influenza vs Covid.
The article also brings into focus the term "novel" as applied to Covid - as in it's too new for scientists to know everything about it; but it is slower to mutate than influenza.
REALLY WORTH READING.
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Seph.
My advice is at your risk.
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