There have been studies suggesting vaccination indeed provides better immunity to mutations. e.g, Vaccine-induced immunity provides more robust heterotypic imm

There have been studies suggesting vaccination indeed provides better immunity to mutations. e.g, Vaccine-induced immunity provides more robust heterotypic immunity than natural infection to emerging SARS-CoV-2 variants of concern: https://www.researchsquare.com/article/rs-226857/v1 https://www.researchsquare.com/article/rs-226857/v1