Yes, there are already clinical studies underway with altered vaccines and the turn-around on developing these is apparently pretty fast (at least with the mRNA

Yes, there are already clinical studies underway with altered vaccines and the turn-around on developing these is apparently pretty fast (at least with the mRNA vaccines). I have also read that yes, authorization can happen much faster for vaccines that are slightly altered versions of vaccines that are already granted authorization (but I don't know the details). Here is a random article on the topic that happens to be ovr 2 months old! So this has been going on for a while now... https://www.theguardian.com/world/2021/may/05/tweaked-moderna-vaccine-neutralises-covid-variants-in-trials https://www.theguardian.com/world/2021/may/05/tweaked-modern...