EmmaDonovan
Crossing the Road
Ok, sure I'll play yes it can happen.
You didn't answer the question I asked and you answered a question I didn't ask instead, again. How odd. We must be talking past each other again.
Definitive results would be multiple peer reviewed studies and trials with repeatable results
... as presented to you by the FDA, you mean?
For example, preliminary results for the COVID vaccine and new strains of COVID have charted the same immune response.
Back to new drugs and new vaccines, then, yes?