19 Study protection from two COVID-19 vaccines against the now prevalent Delta variant of the coronavirus weakens within three months (globalnews.ca) posted 3 years ago by border_humper 3 years ago by border_humper +19 / -0 8 comments share 8 comments share save hide report block hide replies
I say 2/yr, but with each shot weakening the immune system more and more each time who know, we could see monthly booster within a few years