mRNA technology may have taken decades to develop. But the "covid" shot took less than a year.
March 2020 - A new flu like virus was starting to circulate around the world.
April 2020 - We'll use April as the start of the development cycle.
November 2020 - When development and "testing" finished. Mass production started.
December 2020 - First "vaccine" shot given out.
It took 8 months give or take to develop and release the new "vaccine." And even after disastrous side effects were becoming known. It was still pushed onto the world.
July 14 1999
https://www.medicinenet.com/script/main/art.asp?articlekey=9877