We already gave the example where the polio vaccine was developed in and utilized the about the same time period as the Covid mRNA vaccine.
The polio vaccine at the time needed multiple boosters.
https://www.project1999.com/forums/s...postcount=1579
-And I am sure more than 70% of you have had the polio vaccine.
Shoo flies the only misinformation is coming from anti-vaxxers.