In mid-2020, I read some articles from evolutionary biologists that said the risk of vaccinating a population in the middle of a pandemic, which had never happe

In mid-2020, I read some articles from evolutionary biologists that said the risk of vaccinating a population in the middle of a pandemic, which had never happened before, would cause evolutionary pressures that would cause mutations rendering the vaccine useless. I don’t think it’s particularly true given the fact variants occurred in places with very low vaccination rate , ex. India and Delta variant, but it’s an interesting thing to think about. I wonder if we can measure the rate of variants in the wild pre-vaccine and post-vaccine to see if we did see an acceleration of mutations. It would certainly help create evidence one way or another if such a pathway exists in evolutionary biology.