Yes, but it's a greatly abbreviated process for each year's new version of the Flu vaccine. Going forward, the FDA has already said that a reformulation of the

Yes, but it's a greatly abbreviated process for each year's new version of the Flu vaccine. Going forward, the FDA has already said that a reformulation of the mRNA Covid vaccine would face a similarly shortened approval process. >FDA says Covid vaccines that target new variants won’t need large clinical trials to win approval https://www.cnbc.com/2021/02/22/covid-vaccine-fda-says-shots-that-target-new-variants-wont-need-large-clinical-trials-to-win-approval.html https://www.cnbc.com/2021/02/22/covid-vaccine-fda-says-shots...