Vaccines for influenza have been around for decades. The first covid shot was the first ever mRNA technology ever approved for human use.
Now the booster doesn’t simply swap out strains. It moves from a monovalent to a bivalent (original formula plus the Omicron Ba4/Ba5 formula) and we shouldn’t test it? The first ever bivalent mRNA vaccine. Deployed to everyone on the planet. With absolutely no human testing done.
If you’re okay with it, that’s great… that’s your personal choice to trust corrupt health authorities and for-profit vaccine manufacturers. Let me know how it goes.