Who says?
Expansion of tissue-resident CD8+ T cells and CD4+ Th17 cells in the nasal mucosa following mRNA COVID-19 vaccination:
https://www.biorxiv.org/content/10.1101/2021.05.07.442971v1
>If there is vaccine escape (e.g. Delta) ...
The delta variant does not escape vaccines. They are extremely effective at preventing hospitalization even after antibodies have waned.
Who says?
Expansion of tissue-resident CD8+ T cells and CD4+ Th17 cells in the nasal mucosa following mRNA COVID-19 vaccination:
https://www.biorxiv.org/content/10.1101/2021.05.07.442971v1
>If there is vaccine escape (e.g. Delta) ...
The delta variant does not escape vaccines. They are extremely effective at preventing hospitalization even after antibodies have waned.