SARS mutated to become benign after a couple of years as did MERS..... CV-19 is a different virus even though they share the same virus family of coronavirus. No telling what the future might be in this regard.... CV19 will mutate further, its what viruses do as a natural part of the reproduction cycle, they take in fragments of human DNA. the next variants are already being monitored, more than half a dozen of them, by the WHO.
CV91 may become more virulent, in which case everyone who is vaccinated will be ok, more or less.... or it may become benign like SARS.
we honestly should be extremely grateful to the profitable companies who have invested $billions into researching and developing the new vaccine platforms. Vaccines so far have saved many millions of lives.
