> It's almost like the existence of vaccines places evolutionary pressure on a mutating virus. That has nothing to do with it. Delta isn't selecting for immu

> It's almost like the existence of vaccines places evolutionary pressure on a mutating virus. That has nothing to do with it. Delta isn't selecting for immune escape, it is just selecting for higher transmissibility. It has outcompeted other immune escape variants. We aren't into the phase of the pandemic where immune escape becomes important yet.