Variant that achieve immune escape from vaccine-induced immunity are bound to propagate at a faster rate if most people are vaccinated. Even if that variant is

Variant that achieve immune escape from vaccine-induced immunity are bound to propagate at a faster rate if most people are vaccinated. Even if that variant is more lethal (from which you might expect a smaller R0), it might be prevalent because of an augmentation in R0 from vaccination (which might be lesser had people developed a more complete natural immunity).