The Covid shots would not have qualified as vaccines under the pre-2021 definition of vaccine.
Hint:
https://en.mercopress.com/2021/12/01/vaccine-word-of-the-year-for-merriam-webster-lookups-soar-plus-a-more-precise-definition
why thank you cockroach_magoo
(#TaraReadeToo #AshleyBidenToo.)
most timely