The FDA and other bodies dictate what kind of testing and certification must happen before allowing the sale of such products. And in very rare cases will offer emergency approval that bypasses quite a lot of the trialing or cut short the standards that must be met.
To claim any treatment is safe and that any skepticism prior to long-term trials is unscientific... flies in the face of all reason.
Did we learn anything from: cigarrettes, Fen-Phen, Valdecoxib (Bextra), Pemoline (Cylert), Bromfenac (Duract), Levamisole (Ergamisol), Rofecoxib (Vioxx), Isotretinoin (Accutane), and many many more.
All of these products were FDA approved, a feat these vaccines are yet to achieve.
No they haven't. They were approved for emergency use only. New vaccines usually take 6-7 years to complete clinical trials.
Not necessarily. The yearly updated flu shot doesn’t for example. This case is similar, the novel technique itself was in development for a decade now with different parts having been clinically tested.
Indeed. But science does claim that Pfizer, Moderna, etc COVID-vaccines are safe and you are un-scientific if you claim otherwise. They went through proper trials, and were accepted independently* by many countries.
* not completely independently I’m sure, but my point is that even if you don’t trust your country at all, several other ones decided univocally that it is safe