[pritovido]

I talked with a Spanish scientist that has developed a vaccine for covid and other vaccines for other illnesses before that.

He said something like that most of the work in testing is for the "carrier" or something like that(in Spanish). Once your vaccine works with that you could modify the vaccine very fast with little consequences.

Hew also told me that you can share "carriers" for different illnesses and he had tried to convince politicians for decades trying to create "generic carriers" in order to be prepared for something like this.

[usrusr]

Does this new generation of mRNA vaccines even have carriers in the conventional sense?

But when you can change payloads of a pre-validated generic carrier at will you are roughly on the same level of biotechnological advancedness as the mRNA companies anyways, both are lightyears ahead of ancient techniques like breeding weaker viruses in animals or neutering them somehow before injection. A lot of vaccine skepticism seems to be based on the performance of those old ways, it would probably be quite wise to avoid a vaccine that was come up by old trial&error methods in less than a decade.