As far as I understand it is less likely for the spike protein to have a radical mutation and keep the ability to attach to cells at the same time. That's why t

As far as I understand it is less likely for the spike protein to have a radical mutation and keep the ability to attach to cells at the same time. That's why the variants we are seeing have the same spike protein as other mutations of the virus tend to quickly disappear. If a new variant with a different spike emerges, I guess we'll call it SARS-CoV-3 and produce a new mRNA vaccine for it.