|Gateway Regional Park, Fairfax VA, 2021-8|
Here is a formal Argument by Laurie Garrett in Foreign Policy (paywall), “The Science Says Everyone Needs a COVID-19 Booster Shot – and Soon”, link
The tagline, “the biology of the delta variant has made mass revaccination an urgent necessity.”
Garrett goes on and describes the various layers of defense in your immune systems the vaccines (especially mRNA) activate, and why they can wear off.
Eight months for a lot of us will be too long.