https://www.nebraskamed.com/COVID/were-the-covid-19-vaccines-rushed
2. A decade of mRNA vaccine research
Researchers have been developing and researching an mRNA vaccine platform for over 10 years. After SARS-CoV-2 was sequenced, it took just a few days to make the mRNA vaccine candidates. The spike protein’s genetic code was plugged into preexisting technology with an already working process that had been evaluated for other vaccine uses, such as in the fight against dengue.