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One thing to be aware of with RNA viruses - they mutate all the time and almost all mutations are nonviable (unable to infect cells or unable to replicate) and
by Kliment 5y ago
One thing to be aware of with RNA viruses - they mutate all the time and almost all mutations are nonviable (unable to infect cells or unable to replicate) and die off immediately. The fact there are so few variants (and there hasn't been a new dominant variant since October 2020 ) illustrates how fragile its mechanisms are.
- jacquesm 5y agoThe number of viable versions must number in the thousands though, they are just less viable than the previous generation and that's why they'll die out almost immediately, for a new strain to become the dominant one it has to work 'better' than the old one.